I'm trying to use SSH Tunneling with SQLyog Enterprise.
My SSH server takes quite a while to process the login request for some reason (about 8 seconds), and SQLyog seems to decide this is enough to justify a ping timeout error.
It is not really SQLyog that 'decides on' the timeout. it is the PLINK executable. There is nothing changed in this respect between our special PLINK build and the common (OpenBSD) PLINK.