Problems with SSH

We are haveing trouble connecting to a server via ssh through a mikrotik router (Router OS 2.7.14) running on pc. Some servers can be connected while others cant. We know all servers can be connected on the other side of the mikrotik by ssh. Has anyone encounted this problem before?

Thanks
Laurence

You should check the error logs (such as /var/log/warn) on the server. Could be a bunch of things.