I have an Allied AT-FS750/24POE. The switch has no reset button or RS232 port. Everything is configured through the web interface. Allied Telesys has lousy support. We recently virtualized our network and reconfigured our addressing. Our netmask used to be 255.0.0.0 and we changed it to 255.255.255.0. We forgot to update the ip configuratioon on the switch which has a static address. I can no longer access the web interface and I wonder if it has to do with the subnet mask.
Edit: I can ping the switch