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Home > Archive > Voice over IP Cisco > April 2007 > 7940 invalid protocol
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7940 invalid protocol
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| Voll, Scott 2007-04-05, 1:12 pm |
| 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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| Craig Staffin 2007-04-05, 1:12 pm |
| invalid protocal comes up usually when SSON 150 is not set in the DHCP scope
Craig
On 4/5/07, Voll, Scott <Scott.Voll@wesd.org> wrote:
>
> 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
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
--
Craig Staffin
Craig@staffin.org
(H) 262-437-7313
(C) 262-613-6003
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| Candace Holman 2007-04-05, 1:12 pm |
| Here's some info, though pretty old. How far back did you downgrade?
http://cco.cisco.com/en/US/products..._tech_note0918=
6a008055c1fe.shtml
Candace
Voll, Scott wrote:
>
> I downgraded some phones last night to get my broadcast paging working.
>
> Now I have some phones that didn=92t booted up but display a =93invalid =
> protocol=94 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=92t have been an overwhelmed TFTP server.
>
> Thoughts?
>
> Scott
>
> ------------------------------------------------------------------------
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
> =
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