Hi, You've probably solved this by now but if you haven't then if you go into the Web GUI and under Port Management go to Smartport and then Interface Settings and disable 'Auto Smartport' for the uplink(s) in question. This appears to resolve the is...

Hi, I have the exact same problem as you with exactly the same model of Cisco Small Business Switch. I have 23 of these to set-up which will connect into a Nexus 5548! If you define again what VLAN's are allowed access then it brings the trunk up, ve...