How to stop dying terminals connected via ssh?

Question

SSH

Hello.
Once upon a time, everything was fine with us, but after changing the router (to netgear), the following problem is observed:
Open the terminal, connect via ssh to the server, leave the terminal for N minutes (probably 10-15 minutes, I can’t say for sure), after which it stops responding to any actions and can only be closed.
If you display top or any other dynamic information in the terminal, then the terminal does not die.
This is observed on all OSes.
Perhaps someone faced a similar problem? What needs to be done in this case so that the terminals do not die? Thanks in advance.

Answer 1

TCPKeepAlive yes in sshd_config

Answer 2

Try this command, it might help. It helps me :)
ssh -o TCPKeepAlive=no -o ServerAliveInterval=15 -o ServerAliveCountMax=10
I wrote
alias ssh='ssh -o TCPKeepAlive=no -o ServerAliveInterval=15 -o ServerAliveCountMax=10' in my .bash_profile