I also encountered this issue as I was not connected to the messaging service. I have changed two different devices and networks and reinstalled the TeamSpeak6 client, but still have not resolved the issue. I will attach my log file, please help me solve this problem.
[2025-12-26 10:40:38.033] [info] Matrix client create: matrixHost=chat-9.tmspk.net
[2025-12-26 10:40:38.041] [info] Failed to restore store from save data: invalid login data
[2025-12-26 10:40:38.041] [info] Creating fresh store
[2025-12-26 10:40:38.041] [info] new crypto account on init - fresh
[2025-12-26 10:40:38.041] [info] created new group session storage
[2025-12-26 10:40:38.048] [info] connect: ts_chat_id=5 displayname=枫叶随风 presence=online
[2025-12-26 10:40:39.518] [warning] TSChat_Connect failed: Protocol error: error=Internal server error errorCode=M_UNKNOWN softLogout=false retryAfterMs=0 proxy=false
[2025-12-26 10:40:39.518] [error] Connection failed: err=1
[2025-12-26 10:40:39.528] [info] stop: ts_chat_id=5
[2025-12-26 10:40:39.545] [info] Save data path: server_identifier=chat-9.tmspk.net specifier=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 => C:\Users\57682\AppData\Local\TeamSpeak\Cache\Default\tschat\N2I1NGVhOGVlMTE2MWZiZTliZmJmOWRlZGM1NjExZTE
[2025-12-26 10:40:39.557] [info] destroy: ts_chat_id=5
[2025-12-26 10:43:19.538] [info] TSBindingBrowserTSChat::create scHandlerId=0 server_identifier= specifier= endpoint=__CENTRAL__
[2025-12-26 10:43:19.539] [info] Save data path: server_identifier=chat-9.tmspk.net specifier=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 => C:\Users\57682\AppData\Local\TeamSpeak\Cache\Default\tschat\N2I1NGVhOGVlMTE2MWZiZTliZmJmOWRlZGM1NjExZTE
[2025-12-26 10:43:19.540] [info] Matrix client create: matrixHost=chat-9.tmspk.net
[2025-12-26 10:43:19.546] [info] Failed to restore store from save data: invalid login data
[2025-12-26 10:43:19.546] [info] Creating fresh store
[2025-12-26 10:43:19.547] [info] new crypto account on init - fresh
[2025-12-26 10:43:19.547] [info] created new group session storage
[2025-12-26 10:43:19.555] [info] connect: ts_chat_id=6 displayname=枫叶随风 presence=online
[2025-12-26 10:43:20.815] [warning] TSChat_Connect failed: Protocol error: error=Internal server error errorCode=M_UNKNOWN softLogout=false retryAfterMs=0 proxy=false
[2025-12-26 10:43:20.815] [error] Connection failed: err=1
[2025-12-26 10:43:20.815] [info] stop: ts_chat_id=6
[2025-12-26 10:43:20.832] [info] Save data path: server_identifier=chat-9.tmspk.net specifier=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 => C:\Users\57682\AppData\Local\TeamSpeak\Cache\Default\tschat\N2I1NGVhOGVlMTE2MWZiZTliZmJmOWRlZGM1NjExZTE
[2025-12-26 10:43:20.840] [info] destroy: ts_chat_id=6
Same issue as everyone else here. seems chat-9 has issues. Here’s the client side logs… just the tail end to save space:
\[2025-12-25 23:46:06.540\] \[info\] Matrix client create: matrixHost=chat-9.tmspk.net
\[2025-12-25 23:46:06.551\] \[info\] Failed to restore store from save data: invalid login data
\[2025-12-25 23:46:06.551\] \[info\] Creating fresh store
\[2025-12-25 23:46:06.551\] \[info\] new crypto account on init - fresh
\[2025-12-25 23:46:06.552\] \[info\] created new group session storage
\[2025-12-25 23:46:06.572\] \[info\] connect: ts_chat_id=3 displayname=Datawarlock presence=online
\[2025-12-25 23:46:06.970\] \[warning\] TSChat_Connect failed: Protocol error: error=Internal server error errorCode=M_UNKNOWN softLogout=false retryAfterMs=0 proxy=false
\[2025-12-25 23:46:06.970\] \[error\] Connection failed: err=1
\[2025-12-25 23:46:06.984\] \[info\] stop: ts_chat_id=3
\[2025-12-25 23:46:07.001\] \[info\] Save data path: server_identifier=chat-9.tmspk.net specifier=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 => C:\\Users\\Datawarlock\\AppData\\Local\\TeamSpeak\\Cache\\Default\\tschat\\ZmI5NGMxYjE3YjdiOWUxZjljM2M3MjdjMDQ1MTBmNDM
\[2025-12-25 23:46:07.020\] \[info\] destroy: ts_chat_id=3
\[2025-12-25 23:46:46.995\] \[info\] TSBindingBrowserTSChat::create scHandlerId=0 server_identifier= specifier= endpoint=**CENTRAL**
\[2025-12-25 23:46:46.996\] \[info\] Save data path: server_identifier=chat-9.tmspk.net specifier=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 => C:\\Users\\Datawarlock\\AppData\\Local\\TeamSpeak\\Cache\\Default\\tschat\\ZmI5NGMxYjE3YjdiOWUxZjljM2M3MjdjMDQ1MTBmNDM
\[2025-12-25 23:46:46.996\] \[info\] Matrix client create: matrixHost=chat-9.tmspk.net
\[2025-12-25 23:46:47.008\] \[info\] Failed to restore store from save data: invalid login data
\[2025-12-25 23:46:47.008\] \[info\] Creating fresh store
\[2025-12-25 23:46:47.008\] \[info\] new crypto account on init - fresh
\[2025-12-25 23:46:47.008\] \[info\] created new group session storage
\[2025-12-25 23:46:47.028\] \[info\] connect: ts_chat_id=4 displayname=Datawarlock presence=online
\[2025-12-25 23:46:47.431\] \[warning\] TSChat_Connect failed: Protocol error: error=Internal server error errorCode=M_UNKNOWN softLogout=false retryAfterMs=0 proxy=false
\[2025-12-25 23:46:47.431\] \[error\] Connection failed: err=1
\[2025-12-25 23:46:47.446\] \[info\] stop: ts_chat_id=4
\[2025-12-25 23:46:47.466\] \[info\] Save data path: server_identifier=chat-9.tmspk.net specifier=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 => C:\\Users\\Datawarlock\\AppData\\Local\\TeamSpeak\\Cache\\Default\\tschat\\ZmI5NGMxYjE3YjdiOWUxZjljM2M3MjdjMDQ1MTBmNDM
\[2025-12-25 23:46:47.484\] \[info\] destroy: ts_chat_id=4
\[2025-12-25 23:48:07.449\] \[info\] TSBindingBrowserTSChat::create scHandlerId=0 server_identifier= specifier= endpoint=**CENTRAL**
\[2025-12-25 23:48:07.450\] \[info\] Save data path: server_identifier=chat-9.tmspk.net specifier=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 => C:\\Users\\Datawarlock\\AppData\\Local\\TeamSpeak\\Cache\\Default\\tschat\\ZmI5NGMxYjE3YjdiOWUxZjljM2M3MjdjMDQ1MTBmNDM
\[2025-12-25 23:48:07.450\] \[info\] Matrix client create: matrixHost=chat-9.tmspk.net
\[2025-12-25 23:48:07.462\] \[info\] Failed to restore store from save data: invalid login data
\[2025-12-25 23:48:07.462\] \[info\] Creating fresh store
\[2025-12-25 23:48:07.462\] \[info\] new crypto account on init - fresh
\[2025-12-25 23:48:07.462\] \[info\] created new group session storage
\[2025-12-25 23:48:07.472\] \[info\] connect: ts_chat_id=5 displayname=Datawarlock presence=online
\[2025-12-25 23:48:07.837\] \[warning\] TSChat_Connect failed: Protocol error: error=Internal server error errorCode=M_UNKNOWN softLogout=false retryAfterMs=0 proxy=false
\[2025-12-25 23:48:07.837\] \[error\] Connection failed: err=1
\[2025-12-25 23:48:07.839\] \[info\] stop: ts_chat_id=5
\[2025-12-25 23:48:07.856\] \[info\] Save data path: server_identifier=chat-9.tmspk.net specifier=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 => C:\\Users\\Datawarlock\\AppData\\Local\\TeamSpeak\\Cache\\Default\\tschat\\ZmI5NGMxYjE3YjdiOWUxZjljM2M3MjdjMDQ1MTBmNDM
\[2025-12-25 23:48:07.874\] \[info\] destroy: ts_chat_id=5
and the server log if that helps any:
2025-12-25 05:50:47.126538|INFO |VirtualServerBase|1 |listening on 0.0.0.0:9987, \[::\]:9987
2025-12-25 05:50:53.701211|INFO |VirtualServerBase|1 |rejecting myteamspeakid: revoke list out of date
2025-12-25 05:50:53.701260|INFO |VirtualServerBase|1 |client is connecting with a invalid or revoked myTeamSpeak ID
2025-12-25 16:53:59.908276|INFO |VirtualServerBase|1 |rejecting myteamspeakid: revoke list out of date
2025-12-25 16:53:59.908323|INFO |VirtualServerBase|1 |client is connecting with a invalid or revoked myTeamSpeak ID
2025-12-25 16:54:07.010214|INFO |VirtualServerBase|1 |rejecting myteamspeakid: revoke list out of date
2025-12-25 16:54:07.010248|INFO |VirtualServerBase|1 |client is connecting with a invalid or revoked myTeamSpeak ID
2025-12-25 16:55:14.461048|INFO |VirtualServerBase|1 |rejecting myteamspeakid: revoke list out of date
2025-12-25 16:55:14.461081|INFO |VirtualServerBase|1 |client is connecting with a invalid or revoked myTeamSpeak ID
2025-12-26 01:04:51.266790|INFO |VirtualServerBase|1 |rejecting myteamspeakid: revoke list out of date
2025-12-26 01:04:51.266825|INFO |VirtualServerBase|1 |client is connecting with a invalid or revoked myTeamSpeak ID
2025-12-26 01:05:46.817779|INFO |VirtualServerBase|1 |rejecting myteamspeakid: revoke list out of date
2025-12-26 01:05:46.817815|INFO |VirtualServerBase|1 |client is connecting with a invalid or revoked myTeamSpeak ID
2025-12-26 05:22:49.019483|INFO |VirtualServerBase|1 |rejecting myteamspeakid: revoke list out of date
2025-12-26 05:22:49.019520|INFO |VirtualServerBase|1 |client is connecting with a invalid or revoked myTeamSpeak ID
Thanks all of you for bringing this to our attention.
We seem to experience downtime on (chat-2, chat-5, chat-6 and chat-9). We are currently investigating this issue. Please note that due to the holiday period we’re short on staff and it might take a while until we resolve this.
We appreciate your patience and apologize for the inconvenience. We’ll update you as soon as possible.
Update:
Chat-9 should now work fine again, please let us know if you are experiencing any further issues.
We have not found any issues on chat-2, chat-5 or chat-6, meaning the recipient was most likely on chat-9 and was therefore causing connection issues.
The problem started a few days ago.
It keeps showing me I’m in a group chat, when in fact I’m not because the chat creator has already removed me, and I can’t leave the chat myself.
I can’t join screen sharing or create my own group chat. In my friends list, it keeps showing one person as offline, even though I’m still talking to them.
Voice servers work fine.
The only issues are with the group chat features and the friends list.
I’ve tried reinstalling the program and deleting all associated files. The firewall is disabled, and even trying to use a VPN didn’t help.