sql server malformed packets

Hello,
I have 2 sql server on 2 sites connected through a tunnel connection. replication stoped between them and i can’t connect from on to another using sql connection .i have ping between 2 servers i used wireshark and i found that i have somme malformed packets .

Can someone help i tried telnet destination ip 1433 and it worked

but i can’t do the same with port 1434.

Can somone help me please