Client half goes back to hangar after game, but still has battle screen details.

[ProvoBob]

As stated, doesn't go back to garage fully and sometimes has to be closed in the Background Processes section of Task Manager

Aslains_WoT_Logs.zip

[Aslain]

You have a lot of connections errors, might be related, looks like some nasty firewall or antivirus is making this to you

Also wild guess: Achievements in battle by Protanki.