[c-nsp] seeing VLAN-tagged device with layer 2 switch

[Rogelio]

I've got an interesting problem.  I've got some non-Cisco wireless units 
that are VLAN tagged, and for whatever reason, they're not working, and 
I'm going to need to pull them down from a roof and troubleshoot them.

Any ideas on what I might do to see them if I were to use a layer 2 
non-VLAN-friendly switch?  That's all I have immediately available.

Or is doing a hard reset on them my only option?