Hey there!
When I start my TeamSpeak3 Server the Log entry will be created
2020-03-07 22:49:26.922999|ERROR |Accounting | |Error contacting server https://accounting2.teamspeak.com: SSL_ERROR: Alert on protocol: TLS 1.2 level: fatal error: unsupported_certificate (43)
2020-03-07 22:49:26.962265|ERROR |Accounting | |Error contacting server https://backupaccounting2.teamspeak.com: RESOLVE_ERROR: Der angegebene Host ist unbekannt
This message is in the log around 30 times, after that, the Server stops, in the Client with the Message “Server Shutdown” and in the Log with the message “Could not connect to accounting server after multiple attempts, shutting down server”.
As soon as I connect to my Server I also get the Message that my myTeamSpeak ID is invalid. When I remove my “licensekey.dat” the problem is, in some way, solved.
I have no idea why but TeamSpeak keeps dooing this. Maybe they dynamically assign an IP there if something else fail, only speculations though…
Also the certificate is correct
Can’t find where you asked this questions. Still, no need to get mad.
When he says he disabled Windows Defender you can assume he is in fact not running any 3rd party anti-virus software as Windows Defender would otherwise just refer and be practically disabled.
The registry is however not a bad idea.
As it fails to validate the cert and not to make a connection I assume that the cert doesn’t reach the TeamSpeak server properly.
Even though TLS 1.2 should be enabled by default it may still be disabled in the image your provider uses. Only the client part should be interesting here.
Hostname: WIN-OAR9IAVD2CB
Betriebssystemname: Microsoft Windows Server 2019 Datacenter
Betriebssystemversion: 10.0.17763 Nicht zutreffend Build 17763
Betriebssystemhersteller: Microsoft Corporation
Betriebssystemkonfiguration: Eigenständiger Server
Betriebssystem-Buildtyp: Multiprocessor Free
Registrierter Benutzer: Windows-Benutzer
HKLM SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols
Have a look there as stated in the link I shared above. This is where you can manually dis/enable TLS1.2 for server and client applications.
2021-03-13 19:27:17.277997|ERROR |Accounting | |Error contacting server https://accounting2.teamspeak.com: SSL_ERROR: Alert on protocol: TLS 1.2 level: fatal error: unsupported_certificate (43)
2021-03-13 19:27:21.121491|ERROR |Accounting | |Error contacting server https://backupaccounting2.teamspeak.com: RESOLVE_ERROR: No such host is known
2021-03-13 21:27:16.206949|ERROR |Accounting | |Could not connect to accounting server after multiple attempts, shutting down server