Perhaps other people will need to export / import certificates from the Intermediate Certification Authorities or Third-Party Root Certification Authorities folder - it all depends on what certificate is missing and what is the Certification Path for connecting to the Online (Multiplayer) service. Double-click the certificate file -> Install certificate -> Select Local Computer -> Place all certificates in the following store (second option) -> Browse -> Select Trusted Root Certification Authoritiesįor my friend it was enough to import the certificates from this folder to solve the problem. You can download them from here: After exporting the certificates, transfer them to the computer where the problem is and import them. You can use mine too if you want - I already did that for a friend.

Unfortunately, you have to do this with every certificate, because as I wrote, I don't know what certificate Steam / Age of Empires 2 DE uses. Right click on certificate -> All tasks -> Export -> Next -> Next -> name the exported certificate (the name does not matter) and select path to save the file. On the right side you will see the certificates that need to be exported on the computer where there is no problem with Multiplayer. Expand Trusted Root Certification Authorities and select Certificates folder. To enter the Certificate Manager use the WinKey + R hotkey and type certmgr.msc. Then move them and import on the computer where the problem is. So the solution is to export the certificates to files on your computer where there is no connection problem. However, I do not know what specific certificate is used by Steam / Age of Empires 2 DE. If the appropriate certificate is not on the computer or there is a problem with the Certificate Manager, there may be problems with connecting to Online Services (Multiplayer).

Steam or Age of Empires 2 DE uses ssl certificates to connect. I am an IT specialist and I solved this problem on my friend's computer.

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