I recently swapped a switch with another switch in the office. The #1 switch was loud... I wanted to get it in another location that is more enclosed while I get some fans ordered for it. I did a swap between location #1 and #2.
Now my DNS lookups are very slow. I have reset all three switches, upgraded the firmware to most recent versions... when I do a firmware backup to my laptop it is giving me 5k... this is coming from the switch directly to the laptop through a cat5 cable!
All I did was swap two switches in the office... what could be causing this? I have flushed arp caches on our firewall and on the server. I see no way to flush the arp cache on the switches themselves (nice huh?).
These are DLINK DGS1248t switches. Thanks.