add port to VLAN gets error wrong length

Hi,

I have upgraded my Powerconnect 2848 to the latest firmware: 1.0.0.45 and since that I have the issue when I try to add a port to a VLAN I receive an error" null" with the description "wrong length".

I have also tried to add a port to a newly created VLAN, but the result was the same.

Can anyone help me please.

Best regards

Thomas

P.S.: I have used the webconfig as I'm not familiar with the cli command