Recreate device access via CLI - no access because there is no untagged port in the "LAN" zone

Hi all,

can someone provide a hint, how to access a device where all LAN-Interfaces are "tagged" and "LAG"-ports?

I've restored a migrated config and now the only untagged port is the WAN-port (can#t ping or access these port)

I am able to access to serial CLI and are able to logon.

Some ideas how to create a port to access the webadmin?

Thanks
Dirk