I am using previous version of client v.0.17.9.2 and running sometimes just to get sync with network and it works; "current number of blocks 1382830" with date 13 dec 2023.
after seeing your post I started client and it get 2 connection with nodes with even older version of client: v0.14.2
...but thats all, client can not get more connections and synchronise to current date - it seems it doesn't work anymore
The wallet version 21.1 seems to be stuck at block 1370647. It appears that other clients are disconnecting. I couldn't detect any fork.
Debug "Potential stale tip detected, will try using extra outbound peer"
Ehm.. Just for my better understanding. Christian, when are you writing "Debug "Potential stale tip detected, will try using extra outbound peer"", do you mean you are debugging it now, or you suggest us to debug it?