From the VLAN Management menu option, Port VLAN Membership, I select a port and click the Join VLAN button.
The popup window to edit VLAN membership is blank and cannot be edited.
Initially, it opens as a tiny window, but I can adjust the size.
There are no configurable elements. No VLANs to chose.
All other similar popup windows in the swtich config are fine.
I can change VLAN membership, and every thing else, via command line.
I have tried multiple browsers and multiple machines. Same result.
I also reset the switch to factory, no change.
