Reconnecting issue. Can't play on web anymore.

There are few days now since I can't use Lichess in my laptop's browser. No game is starting and I can't even move in puzzles. I tried several different networks, all of them with strong internet connections, but I still get that red reconnecting pop up in the left lower corner.

Mention that the mobile app is working fine and the phone is connected to the same network as my laptop.

Any idea about how to solve this?

Thanks,
Dragos

Calls like this one seems to last almost 9 seconds. any idea?

Request URL: wss://socket5.lichess.org/lobby/socket/v4?sri=GKeb24UJLHHP

We are playing a chess tournament on lichess at my workplace. I cannot play on my work computer because of this issue. I see a lot of errors like this one in Google Chrome Console :

lichess.site.min.js:24 WebSocket connection to 'wss://socket4.lichess.org/lobby/socket/v4?sri=ZW9cehxWnATE' failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED