Allied Telesis AT-S26 - Manual (Page 114)

Configuring Virtual LANs and Quality of Service
114
6. If you moved the ports back to the Default VLAN, no further steps are
required. The VLAN has been deleted and you have reassigned the
untagged ports to the Default VLAN. However, if you reassigned the
ports to a VLAN other than the Default VLAN, you must perform the
additional step of modifying the PVID of the ports to match the VID of
their new VLAN. This can be accomplished by performing the
procedure in Creating a New Port-based or Tagged VLAN, Phase 2
on page 105.