Management can only be accessed from VLAN 1. If you are only allowing tagged packets then the untagged VLAN 1 won't pass, if you allowed untagged packets you may be able to get it to work, but only if you had other devices on VLAN 1 on the other end of the trunk and all of the untagged traffic was communicating. Unfortunately this switch doesn't have the capabilities like our higher end switches to run management on any VLAN or have a dedicated management port. 
In relation to my other question ([URL] I wanted to know if I setup LAG 1 in VLAN 1 will I be able to manage the switches across the trunk since it's not tagged? I was assuming only tagged packets would traverse the switches as I had LAG1 set to Frame Type: Admit Tag Only, VLAN 1 by default is untagged and when I tried to change my PVID for port one just now to use a new VLAN (I created 11 to hoping trunk the web management) I lost access to the web management altogether. I think I remember reading somewhere before that Port 1 must always remain in VLAN 1 / PVID 1 in order to access the web management gui, I'd prefer to be able to manage both switches from a single cable run to my management station and keep them off the routed network. (I'm unable to test the trunk at this time as I can't change the live environment until a maintenance window on the 25th)
Powerconnect 2716 default VLAN1 trunkable?