Problems connecting to switch via serial
We've got a Managed switch which is currently acting as just a switch but 1 of the 2 uplink ports is mated to an SFP port that isn't in use so I need to change it back to the copper port as currently it does work but only at 100Mbps, instead of 1000Mbps.
The Switch is an Allied Telesyn AT-8350GB the manual says its also got a web interface but without knowing the IP address I've no way of logging into that.
We got the switch second hand and I assume it was never restored to factory defaults.
So my question is how can I log into the switch to configure it? I've tried via serial using various telnet programs and using the settings from the manual.
But the programs just appear to connect but I don't get any login screen, just a flashing "I" bar.
We also have an AT-8326GB with the same problem.