We have about 30 x 220 series switches installed at our sites. After +- a week SSH access to the switches stops working completely. We have telnet disabled and only ssh access enabled. Rebooting always resolves the issue. Running latest firmware at this stage ( 184.108.40.206)
So at this stage I can only do config changes via web gui. Logged case with GTAC but its been more than a month and they still not resolving issue.
Trying to see if we are the only ones with the issue or if its a know bug of some sort.