Our team is aware that several players have had difficulty connecting to Company of Heroes 3 and we wanted to provide an update on our investigation, along with some troubleshooting steps in the meantime as we work on a solution. On September 10th, Relic’s service SSL certificate was renewed using AWS Certificate Manager (ACM). ACM recently changed the trust anchor for its certificates, transitioning from the “Starfield Class 2 Certification Authority” (GoDaddy) to the Amazon-owned “Starfield Services Root Certificate Authority - G2.”  Players may be experiencing connection issues because “Starfield Services Root Certificate Authority - G2” is not installed on their systems, which is causing the SSL certificate validation to fail.  We expected this root certificate to be available on up-to-date Windows systems or to be installed automatically via Windows’ Auto-Root Certificate Retrieval feature. However, some players are experiencing connection issues due to this certificate not being present.  Possible reasons include: 

• Outdated Windows systems that haven’t received recent root certificate updates. 
• Auto-root certificate retrieval is disabled in system settings or group policies. 
• Network restrictions prevent Windows from fetching the missing root certificate. 

It is possible to check if the "Starfield Services Root Certificate Authority - G2" is installed on your Windows system by doing the following: 

• Press the Windows Key + R to open the Run dialog. 
• Type certmgr.msc and press Enter. 
• In the left panel, navigate to Trusted Root Certification Authorities → Certificates. 
• Look for Starfield Services Root Certificate Authority - G2 in the list as shown in this image.

  Players still not able to connect to Company of Heroes 3 can try the troubleshooting steps below while our team finalizes a fix we hope to include in Tuesday’s 1.8.0 update. We will keep you updated on our progress.   Please follow these troubleshooting steps in order: 

• [MOST RELIABLE FIX] Open the command line (Command Prompt) and run the command
  Code

  curl.exe https://coh3-api.reliclink.com/game/version/checkStatus
   
• If you have Windows updates pending, in progress or available, please complete their installation and restart your PC. 
• If that still does not resolve the issue, please open your browser and go to https://leaderboards.companyofheroes.com/. After that, try launching CoH3 again. 
• If these options do not work, please open Windows Edge and navigate to https://coh3-api.reliclink.com/game/version/checkStatus. It should give the response ["ok"]. If it does, run the game again and it should be able to connect fine. If it does not give the ["ok"] response, ensure that Windows is up to date.

  You may need to perform these steps, and restart your PC a few times. Thank you for your patience as we work to resolve this as quickly as possible. -The Relic Programmer Team