[cisco-voip] 7940 invalid protocol

[Voll, Scott]

I downgraded some phones last night to get my broadcast paging working.

 

Now I have some phones that didn't booted up but display a "invalid
protocol" on the screen.  They have unplugged and plugged back in and
still no good.  How do I fix this?  I only reset 50 phones at a time so
it shouldn't have been an overwhelmed TFTP server.

 

Thoughts?

 

Scott

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