Disconnect and reconnect to the server

The disconnection happens at 3 minutes after I launched the game for two seconds then reconnected, The chance of this disconnection is about 50%, if I can start playing a game within the first 3 minutes after I launch the game, then it won’t happen, the following screenshot is the disconnection error message I got when I’m searching for quick match (it will just show I disconnect and reconnected when I’m browsing lobby or something else when I’m not playing a game), please fix this, its a problem for me since season 4

Platform: Steam
(ignore this)