troubleshooting Question

PC's cannot connect through IP phones to network - If bypass IP phone, connect fine. Worked fine for 4 years until a power outage.

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vianceadmin asked on
Voice Over IPSwitches / Hubs
8 Comments1 Solution1745 ViewsLast Modified:
Experts, I need some help.  Our VoIP system has been in place for about 4 years and we've never had any problems with it once it was implemented.  Yesterday, we had a power outage and lost power to the building for about an hour so everything went down.  This morning, any PC connected to the IP phone cannot connect to the network (getting an IP address but can't ping anything).  If the PC bypasses the IP phone and connects to the network drop in the room, it connects to everything just fine.  So it's almost like the Avaya IP phones are preventing the PC's from connecting to the network which I can't understand.  We have two sites and the switches are all configured the same way.  I checked the config on the switches at the site in question and it looks the same as it did 2 years ago (config hasn't changed).  I'll attach the switch configs to the case.  I have two Cisco 3750 switches (One is the main routing switch and the other is connected to it using the GBIC fiber connection).  

The only thing I can think of is that the IP Phones when getting an IP address from our DHCP server is somehow not assigning the data to a different VLAN and therefore not routing correctly???

I also noticed that a few lab machines that are connected to a 100MB hub also can't connect to the network (and they aren't connected throuh phones).  It's almost like anything connected to a phone or hub and then connected to the network can't connect to anything.  If they are connected directly to the network drop, they can.  Also, the IP Phones and voice network are working fine.  

Thanks in advance for any help you can give.  If there's any additional info, you need, let me know.

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