We have a D-link network stack on our network, along with a Cisco switch. The D-link stack and other D-link switches were introduced a number of weeks ago and all has been working fine, until a few days ago.
The issue we are experiencing seems to be down to the main D-link stack switches (D-Link DGS-3420-52T) One of the switches in the stack appears to be having issues booting and seems to knock the other switches off the network. There is also a Cisco switch on board (existing one prior to the upgrade) this switch seems to be freezing when the D-link switch is attempting to boot.
Is anyone able to provide any details on what could possibly cause this?