I recently replaced a faulty B5 Switch which was manager in a stack of 3 switches, I turned off all the switches before taking out the old one. I configured an installed the new switch using a backup file of the previous switch.
Now after installing the switch, only the manager switch is able to access my network and the internet. Computers connected to the manager switch have access but those connected to stack members 2& 3 do not have access to the network.
Client PCs are unable to receive IP addresses from these switches though they are operational and have the green LED light on the ports connected.
When i use "show switch" "show member
There is a SFP Uplink to switch 1 and 3 for Internet but the SFP port 48 on switch 3 does not light up.