Per-port GVRP must be disabled before configuring as access mode.
TOR-1 SEFOS# configure terminal TOR-1 SEFOS(config)# set port gvrp extreme-ethernet 0/1 disable TOR-1 SEFOS(config)#
TOR-1 SEFOS(config)# interface extreme-ethernet 0/1 TOR-1 SEFOS(config-if)#
SEFOS(config-if)# switchport acceptable-frame-type untaggedAndPrioritytagged SEFOS(config-if)# switchport mode access SEFOS(config-if)# end TOR-1 SEFOS#
After you configure the port as access, the port becomes a member port of the VLAN that is configured as PVID for that port.