Failed to get cmg metadata 0x87d00231 - One of our stations fails to connect to SCCM, the log errors are: RegTask: Failed to send registration request message. Error: 0x87d00231. RegTask: Failed to send registration request. Error: 0x87d00231. If this is related then the MP is set to HTTP.

 
Nov 1, 2022 · After upgrading from SCCM 2203 to 2207, the upgrade failed, we were getting an error, failed to update key vault, bad request. so in an effort to work around the problem, we decided we could try to tear out the existing CMG and reimplement using all new names and to a new resource group, However, the new cmg fails to deploy with the same exact ... . Baucom

Feb 1, 2021 · I have set up Configuration Manager by the book. I had to integrate it with an existing WSUS and SQL Server. I have not been able to successfully push the agent to the three workstations that I tried. Oddly, one workstation installed a little better than the other one, but neither is fully... Error: 0x87d00231 ClientIDManagerStartup 08/11/2022 5:48:12 PM 5540 (0x15A4) RegTask: Failed to send registration request. Error: 0x87d00231 ClientIDManagerStartup 08/11/2022 5:48:12 PM 5540 (0x15A4) [RegTask] - Sleeping for 60 seconds ...May 26, 2017 · MCSE Cloud Platform and Infrastructure. MCSE: Mobility. MCSE: Data Management and Analytics. MCSE Productivity. Find technical communities in your area. MSDN Forums. Security Bulletins & Advisories. Microsoft Community Forums. This article describes an issue in which content can't be downloaded from a cloud management gateway (CMG) that functions as a cloud distribution point (DP), and you receive an WINHTTP_CALLBACK_STATUS_FLAG_CERT_CN_INVALID error message. Original product version: Configuration Manager (current branch) Original KB number: 4495265 SymptomsAfter the process of installing the workgroup clients in the internal network is completed and the clients go to the Internet, they are unable to communicate the cmg. I think the root problem is that they were unable to register to the internal MP-HTTPS server during the task and get the token. PKI cert for cmg issued from our internal CA. The Clients use internal PKI certs and CMG uses a public wildcard cert. When I put one of the Clients on the Internet and tried to get an app installed, the attempt failed, as well, the Client went grey in SCCM console. I checked the Client settings and found it knows about CMG, but cannot connect to it. in ccmMessaging.log I saw:My lab recently started playing up when I noticed clients weren’t receiving any new policies. TDLR (it’s not even that long!): a while ago I moved my SUP/WSUS off host from the site server that also hosted a MP.Mar 16, 2016 · To Resolve: Change the registry key value (DisableRenegoOnClient) from 1 to 0 and restart the CCMExec service. reg add "hklm\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL" -v DisableRenegoOnClient /t REG_DWORD /d 0 /f. powershell -executionpolicy bypass -command restart-service ccmexec. PS. May 24, 2016 · RegTask: Failed to send registration request message. Error: 0x87d00231 ClientIDManagerStartup 5/18/2016 12:20:21 PM 456 (0x01C8) RegTask: Failed to send registration request. Error: 0x87d00231 ClientIDManagerStartup 5/18/2016 12:20:21 PM 456 (0x01C8) [RegTask] – Sleeping for 960 seconds … In here your CMG certificate chain should include the correct certificate chain. as you can see in the illustration, the issuer of this certificate can’t be found, and as such our trust is broken. To fix the issue, copy and import your missing root certificate(s) to the Azure cloud management gateway server. Nov 9, 2022 · Error: 0x87d00231 ClientIDManagerStartup 08/11/2022 5:49:12 PM 5540 (0x15A4) RegTask: Failed to send registration request. Error: 0x87d00231 ClientIDManagerStartup 08/11/2022 5:49:12 PM 5540 (0x15A4) [RegTask] - Sleeping for 60 seconds ... Post to https:///ccm_system/request failed with 0x87d00231. LOCATIONSERVICES: Unable to retrieve AD site membershipJan 4, 2017 · You are right regarding the security concerns but actually it's a POC server and after that we will replicate to a production environment. And regarding the certificate the CRLis listed on the server and client certificate as below screenshots. However, I've hit a wall when switching the MP over to HTTPS. The clients still continue to use HTTP! For the record, the overall Client Security settings are still set to 'HTTP or HTTPS' (without Enhanced HTTP turned on). From CCMEVAL I can see that it clearly tries to use HTTP. Client is set to use HTTPS when available. The current state is 480.Feb 6, 2020 · Logged. #1. February 06, 2020, 08:03:52 AM. 0x87D00669 = Not able to get software updates content locations at this time. This means the client can't find the update in the DP's. Please make sure your package is distributed and boundaries set up. Press J to jump to the feed. Press question mark to learn the rest of the keyboard shortcutsSince we are using Internal PKI cert on CMG, I have exported the Root certificate and imported into DMZ server, Installation went fine and client was able to communicate well after the installation. It received all policies and able to push software updates/apps.Logged. #1. February 06, 2020, 08:03:52 AM. 0x87D00669 = Not able to get software updates content locations at this time. This means the client can't find the update in the DP's. Please make sure your package is distributed and boundaries set up.If so, please check if the SSL certificate common name (host name field) is correct and the hostname the client is connecting to is matched with the certificate's subject or subject alternate name. It is recommended that we could check the certificate and use the FQDN of the server in the Common Name section.Apr 9, 2021 · Good afternoon Team. I hope you are well. I have a question, in my client we are installing the client via client push, at the end gives me as code 0 but the client still does not register. When reviewing the log file… RegTask: Failed to send registration request message. Error: 0x87d00231 ClientIDManagerStartup 3/3/2020 9:45:48 AM 26272 (0x66A0) RegTask: Failed to send registration request. Error: 0x87d00231 ClientIDManagerStartup 3/3/2020 9:45:48 AM 26272 (0x66A0) ClientLocation 19/08/2020 17:39:37 2624 (0x0A40) Raising pending event: instance of CCM_CcmHttp_Status { DateTime = "20200819163937.494000+000"; HostName = "cmg.cmg.net"; HRESULT = "0x80072f8f"; ProcessID = 444; StatusCode = 8; ThreadID = 2624; }; ClientLocation 19/08/2020 17:39:37 2624 (0x0A40) Failed in WinHttpSendRequest API, ErrorCode ...Oct 21, 2015 · You would have to examine a combination of various logs to get an idea what was happening (CLientIDManagerStartup.log on the client, IIS logs, mpcontrol.log and MP_ClientRegistration.log on the MP). 0x80072efe = "The connection with the server was terminated abnormally". This basically equates to something somewhere outside of ConfigMgr's ... Mar 19, 2018 · ClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) CCM Identity is in sync with Identity stores ClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) Begin searching client certificates based on Certificate Issuers ClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) Certificate Issuer 1 [CN=Entrust Root Certification Authority ... I have set up a cloud management gateway in my MECM Environment. PKI Infrastructure is also in place, and it is working as expected. The MECM clients function fine when communicating with the local MP (on-premises MP); however, clients cannot discover a…Morning, I'm pushing out client to some of our DMZ servers. Client installation finished successfully as far as I can see from ccmsetup.log file. Investigating further, I noticed I kept getting the following in ClientIDManagerStartup.log: RegTask: Failed to send registration request message. Error: 0x87d00231.Note: Non-Microsoft link, just for the reference. Uncheck the check box of Clients check the CRL for site systems from Site Properties. Reinstalled client with /NoCRLCheck CCMHOSTNAME=InternetFQDN with SMSSite code switches. If the response is helpful, please click "Accept Answer" and upvote it. Note: Please follow the steps in our ...May 24, 2016 · RegTask: Failed to send registration request message. Error: 0x87d00231 ClientIDManagerStartup 5/18/2016 12:20:21 PM 456 (0x01C8) RegTask: Failed to send registration request. Error: 0x87d00231 ClientIDManagerStartup 5/18/2016 12:20:21 PM 456 (0x01C8) [RegTask] – Sleeping for 960 seconds … Jun 22, 2017 · We decided to tackle the errors in SMS_CloudConnector.log that indicated the connector role was unable to connect on port 10140, even though according to the documentation that port (and the rest of the range, 10124-10156) were only required if running more than one VM instance for the CMG. This required a firewall change to allow the ... Choose the certificate type. Globally unique name. Issue the certificate. Create a DNS CNAME alias. Next steps. Applies to: Configuration Manager (current branch) The first step when you set up a cloud management gateway (CMG) is to get the server authentication certificate. The CMG creates an HTTPS service to which internet-based clients ...ClientLocation 19/08/2020 17:39:37 2624 (0x0A40) Raising pending event: instance of CCM_CcmHttp_Status { DateTime = "20200819163937.494000+000"; HostName = "cmg.cmg.net"; HRESULT = "0x80072f8f"; ProcessID = 444; StatusCode = 8; ThreadID = 2624; }; ClientLocation 19/08/2020 17:39:37 2624 (0x0A40) Failed in WinHttpSendRequest API, ErrorCode ...Locationservices.log indicates "Failed to get CMG metadata 0x87d00231" and if I restart the smsagent service while internet connected I'm seeing what looks like it's referencing a certificate error: Successfully queued event on HTTP/HTTPS failure for server 'CMG.CENTRALUS.CLOUDAPP.AZURE.COM'. Choose the certificate type. Globally unique name. Issue the certificate. Create a DNS CNAME alias. Next steps. Applies to: Configuration Manager (current branch) The first step when you set up a cloud management gateway (CMG) is to get the server authentication certificate. The CMG creates an HTTPS service to which internet-based clients ...The Clients use internal PKI certs and CMG uses a public wildcard cert. When I put one of the Clients on the Internet and tried to get an app installed, the attempt failed, as well, the Client went grey in SCCM console. I checked the Client settings and found it knows about CMG, but cannot connect to it. in ccmMessaging.log I saw:Feb 6, 2020 · Logged. #1. February 06, 2020, 08:03:52 AM. 0x87D00669 = Not able to get software updates content locations at this time. This means the client can't find the update in the DP's. Please make sure your package is distributed and boundaries set up. Post to https:///ccm_system/request failed with 0x87d00231. LOCATIONSERVICES: Unable to retrieve AD site membershipFeb 6, 2020 · Logged. #1. February 06, 2020, 08:03:52 AM. 0x87D00669 = Not able to get software updates content locations at this time. This means the client can't find the update in the DP's. Please make sure your package is distributed and boundaries set up. In the SCCM CB console, choose Administration. 2. In the Administration workspace, expand Site Configuration, choose Sites, and then choose the primary site server. 3. Right-click on the Primary site server, choose Properties and choose the Client Computer Communication tab.SCCM CMG Failed to sign in to Azure – Symptoms. One of the first step to configure the Cloud Management Gateway is to configure the Azure Services. This step consists of creating the connection to the Azure Tenant and create 2 Web Applications, the ConfigMgr Server Application, and ConfigMgr Client Application.Mar 16, 2016 · To Resolve: Change the registry key value (DisableRenegoOnClient) from 1 to 0 and restart the CCMExec service. reg add "hklm\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL" -v DisableRenegoOnClient /t REG_DWORD /d 0 /f. powershell -executionpolicy bypass -command restart-service ccmexec. PS. [ccmsetup] Failed to get MDM_ConfigSetting instance, 0x80041010_The ping test will fail, that’s normal, but it should still resolve the cmg host name with an ip. If you see a warning in the browser it means that your device does not trust the cmg server authentication certificate, you’ll have to fix that issue first. Your device needs a client auth cert that chains to the same root.Clients failed to connect to CMG MP in the cloud, Site is configured to E-http Client are AAD hybrid. Thanks LocationServices.log: MapNLMCostDataToCCMCost() returning Cost 0x1 LocationServices 27/06/2021 09:28:14 2088 (0x0828)we set up a testing environment for bitlocker purposes and because of new features for bitlocker we updated yesterday from 1910 to 2002. Update was done fine but now our 3 clients dont contact SCCM anymore. we tried to install new ccm client manually but ccmsetup.log shows a lot of errors. After checking PKI we solved on problem and clients can ...Error: 0x87d00231" Reinstall the agent seems to solve the issue when we try on one of the client but just thought checking up what could be the possible issue. Its will be hard on patch compliance if user lost connection to CMG due to this issue. We currently on MECM version 2010 and using PKI cert for CMG communication. Appreciate all the input!When running the CMG validation checker All checks are successful except the last one and it reports the following error: Succeed to get ConfigMgr token with Azure AD token. Failed to refresh MP location. Status code is ‘500’ and status description is ‘CMGConnector_InternalServerError’. A possible reason for this failure is the CMG ...Post to https:///ccm_system/request failed with 0x87d00231. LOCATIONSERVICES: Unable to retrieve AD site membershipMy lab recently started playing up when I noticed clients weren’t receiving any new policies. TDLR (it’s not even that long!): a while ago I moved my SUP/WSUS off host from the site server that also hosted a MP.Morning, I'm pushing out client to some of our DMZ servers. Client installation finished successfully as far as I can see from ccmsetup.log file. Investigating further, I noticed I kept getting the following in ClientIDManagerStartup.log: RegTask: Failed to send registration request message. Error: 0x87d00231.After the process of installing the workgroup clients in the internal network is completed and the clients go to the Internet, they are unable to communicate the cmg. I think the root problem is that they were unable to register to the internal MP-HTTPS server during the task and get the token. PKI cert for cmg issued from our internal CA. Feb 6, 2020 · Logged. #1. February 06, 2020, 08:03:52 AM. 0x87D00669 = Not able to get software updates content locations at this time. This means the client can't find the update in the DP's. Please make sure your package is distributed and boundaries set up. One of our stations fails to connect to SCCM, the log errors are: RegTask: Failed to send registration request message. Error: 0x87d00231. RegTask: Failed to send registration request. Error: 0x87d00231. If this is related then the MP is set to HTTP.Error: 0x87d00231 ClientIDManagerStartup 11/20/2017 3:58:37 PM 2888 (0x0B48) RegTask: Failed to send registration request. Error: 0x87d00231 ClientIDManagerStartup 11/20/2017 3:58:37 PM 2888 (0x0B48)Failed to verify that the given file is a valid installation package. 782-2146893560: 2148073736: 0×80090108: Failed to access all the provided program locations. This program will not retry. 783-2146893562: 2148073734: 0×80090106: Failed to verify the executable file is valid or to construct the associated command line. 784-2146893564: ...Oct 28, 2022 · This article describes an issue in which content can't be downloaded from a cloud management gateway (CMG) that functions as a cloud distribution point (DP), and you receive an WINHTTP_CALLBACK_STATUS_FLAG_CERT_CN_INVALID error message. Original product version: Configuration Manager (current branch) Original KB number: 4495265 Symptoms The Clients use internal PKI certs and CMG uses a public wildcard cert. When I put one of the Clients on the Internet and tried to get an app installed, the attempt failed, as well, the Client went grey in SCCM console. I checked the Client settings and found it knows about CMG, but cannot connect to it. in ccmMessaging.log I saw:Failed to get CMG service metadata. For more information, see SmsAdminUI.log." The step "Testing the CMG channel for management point: 'thenameoftheMP'" gives me a new error, "Failed to refresh MP location. Selected client certificate is not trusted by the CMG service.However, I've hit a wall when switching the MP over to HTTPS. The clients still continue to use HTTP! For the record, the overall Client Security settings are still set to 'HTTP or HTTPS' (without Enhanced HTTP turned on). From CCMEVAL I can see that it clearly tries to use HTTP. Client is set to use HTTPS when available. The current state is 480. Press J to jump to the feed. Press question mark to learn the rest of the keyboard shortcutsOct 21, 2015 · You would have to examine a combination of various logs to get an idea what was happening (CLientIDManagerStartup.log on the client, IIS logs, mpcontrol.log and MP_ClientRegistration.log on the MP). 0x80072efe = "The connection with the server was terminated abnormally". This basically equates to something somewhere outside of ConfigMgr's ... Feb 2, 2021, 2:30 AM Hi all, We have SCCM 2002 , after the CMG implementation , when we force the client to internet , sccm client not reporting to SCCM site server, with below error , any suggestion pls Failed to get CMG metadata 0x87d00227 Failed to get management points from XXXXX. Error 0x87d00227 Not Monitored Sign in to follow 0 commentsClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) CCM Identity is in sync with Identity stores ClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) Begin searching client certificates based on Certificate Issuers ClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) Certificate Issuer 1 [CN=Entrust Root Certification Authority ...Go to Monitoring / Cloud Management. Natiguate to the bottom of the Dashboard, in the Cloud Management Gateway Statistics section. From there you can validate that there’s some client communicating and their authentication methods. If there’s anything wrong, the next step is to use the Cloud Management Gateway Connection Analyser.The CRL is not reachable from internet so I disabled CRL check on the site and during setup. Does it matter if I disabled CRL checking on site after everything was setup I can't exactly remember when I changed the setting.Failed to get ConfigMgr token with Azure AD token. Status code is ‘503’ and status description is ‘CMGConnector_ServiceUnavailable’. A possible reason for this failure is the CMG connection point failed to forward the message to the management point. The management point returned the following error: ‘ServiceUnavailable’.Most clients (I didn't check all) look ok (packages are being downloaded and installed). This is one primary site (ad domain) with one MP and few DPs . Clients are installed via push wizard. What i did: client reinstall (ccmsetup.exe /uninstall and also try with ccmclean.exe from sms2003 pack) telnet to MP port 80 (is ok) delete client account ...Post to https:///ccm_system/request failed with 0x87d00231. LOCATIONSERVICES: Unable to retrieve AD site membership Specify a name and select Cloud Management, click Next. In this step, the Azure Administrator will be required to create the web app and native client app. Click on Browse for the Web app. Click on Create. Click the Sign in and provide Azure administrator credentials. Default names do just fine.ClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) CCM Identity is in sync with Identity stores ClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) Begin searching client certificates based on Certificate Issuers ClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) Certificate Issuer 1 [CN=Entrust Root Certification Authority ...RegTask: Failed to send registration request message. Error: 0x87d00231 ClientIDManagerStartup 3/3/2020 9:45:48 AM 26272 (0x66A0) RegTask: Failed to send registration request. Error: 0x87d00231 ClientIDManagerStartup 3/3/2020 9:45:48 AM 26272 (0x66A0) Mar 7, 2019 · Connect to the CMG service to see if it's running. Failed to connect to the CMG service. Unexpected response status code is NameResolutionFailure. For more information, see SmsAdminUI.log. Check configuration settings of the CMG service is up to date. Configuration version of the CMG service should be 5. Failed to get CMG service metadata. Hi All, I uncheck the check box from Site Properties which disable CRL check. I reinstalled client with SMSMP and /NoCRLCheck switches and Client is now appearing in the Console as Active.Hello guys, Since two days ago, our Windows 10 client computers stopped reporting currently logged on users and are showing offline, although they're..This check occurs every 25 hours, when the SMS Agent Host service starts or when it detects a network change. When the client connects to the site and learns of a CMG, it automatically updates this valu e. After learning about CMG, Internet Management Point values will be updated. SCCM Client side log validationPost to https:///ccm_system/request failed with 0x87d00231. LOCATIONSERVICES: Unable to retrieve AD site membershipWe had the wrong root cert in our CMG properties which is why the client didn’t register properly with PKI once that was replaced and the client restarted, it registered fine. Reply Justin Chalfant on August 8, 2021 at 11:01 AMMar 19, 2018 · ClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) CCM Identity is in sync with Identity stores ClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) Begin searching client certificates based on Certificate Issuers ClientIDManagerStartup 3/16/2018 9:13:33 AM 7968 (0x1F20) Certificate Issuer 1 [CN=Entrust Root Certification Authority ... Client Authentication and Authorization. There are three choices here for systems connecting from the Internet. As implied by the name, this provides authentication or authorization of the client systems by the CMG and the site. These are more or less documented at Certificates for the cloud management gateway – – Client authentication ...

Apr 2, 2020 · Hi, for info, there is an order. We recently had issues with some our servers in the DMZ, most used the token, however we had a couple that already had certs on them using their FQDN which wouldn’t register in the console. . Cheap motels near me under dollar100

failed to get cmg metadata 0x87d00231

SCCM CMG Failed to sign in to Azure – Symptoms. One of the first step to configure the Cloud Management Gateway is to configure the Azure Services. This step consists of creating the connection to the Azure Tenant and create 2 Web Applications, the ConfigMgr Server Application, and ConfigMgr Client Application.Mar 16, 2016 · To Resolve: Change the registry key value (DisableRenegoOnClient) from 1 to 0 and restart the CCMExec service. reg add "hklm\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL" -v DisableRenegoOnClient /t REG_DWORD /d 0 /f. powershell -executionpolicy bypass -command restart-service ccmexec. PS. marking this as solved as it seems like i am stuck with PKI for the time being :( it's a pain because it stops the SCCM client registering quickly enough after a task sequence and I get loads of PCs without hardware inventory because IT shut them down and shipped them out to someone before the client registered, or before it ran hardware inventory.[ccmsetup] Failed to get MDM_ConfigSetting instance, 0x80041010_Yes, the clients have a trusted root to the internal PKI used for CMG. Thank you, I have installed the CMG connection point. The MP is installed using E-HTTP. In this case the CMG connection won't require a client authentication certificate. Is this correct ?Error: 0x87d00231 ClientIDManagerStartup 11/20/2017 3:58:37 PM 2888 (0x0B48) RegTask: Failed to send registration request. Error: 0x87d00231 ClientIDManagerStartup 11/20/2017 3:58:37 PM 2888 (0x0B48)In here your CMG certificate chain should include the correct certificate chain. as you can see in the illustration, the issuer of this certificate can’t be found, and as such our trust is broken. To fix the issue, copy and import your missing root certificate(s) to the Azure cloud management gateway server.marking this as solved as it seems like i am stuck with PKI for the time being :( it's a pain because it stops the SCCM client registering quickly enough after a task sequence and I get loads of PCs without hardware inventory because IT shut them down and shipped them out to someone before the client registered, or before it ran hardware inventory.Nov 27, 2017 · but the client did not get it !!! what could be the issue? in ClientIDManagerStartup.log [RegTask] - Client is not registered. Sending registration request for GUID:0F401FC7-A72A-468C-8949-D07C22A761D0 ... ClientIDManagerStartup 11/20/2017 3:58:31 PM 2888 (0x0B48) RegTask: Failed to send registration request message. I’m paranoid. We recently upgraded our site to ConfigMgr 2002, first fast ring, then the hotfix. We also installed a Cloud Management Gateway, re-worked our Boundary Groups to handle VPN better, added a second Management Point and generally made a butt-load of changes to our environment to help our remote clients have access to content more easily.marking this as solved as it seems like i am stuck with PKI for the time being :( it's a pain because it stops the SCCM client registering quickly enough after a task sequence and I get loads of PCs without hardware inventory because IT shut them down and shipped them out to someone before the client registered, or before it ran hardware inventory.The Application Catalog role configured an IIS redirect on the default web site so that all requests to the server were getting redirected to the Application catalog. Simply disabling the redirect and restarting IIS was enough to get our client install working across the CMG using AAD authentication with no PKI required.marking this as solved as it seems like i am stuck with PKI for the time being :( it's a pain because it stops the SCCM client registering quickly enough after a task sequence and I get loads of PCs without hardware inventory because IT shut them down and shipped them out to someone before the client registered, or before it ran hardware inventory.In the Site Properties under client communications the option 'Check CRL' was checked. In our environment the CRL is not published. This setting caused the authentication to fail as it is unable to retrieve the CRL information. After unchecking that option and reinstalling the SCCM agent from the primary site, the authentication is now working.Apr 10, 2019 · Failed to get ConfigMgr token with Azure AD token. Status code is '403' and status description is 'CMGConnector_Un-authorizedrequest'. A possible reason for this failure is the CMG connection point failed to forward the message to the management point. The management point returned the following error: 'Un-authorizedrequest'. .

Popular Topics