09-28-2010 04:57 PM - edited 03-16-2019 01:04 AM
i have a couple computers on my network that are having problems connecting to the network behind our cisco phones. This morning a user brought their computer in for an upgrade to windows 7 from vista. the laptop has worked fine behind the phone but after the windows 7 install the PC doesnt not recognize the network connection. it says "network cable unplugged".
i can remove the network cable from my SW port on my 7960 and plug it directly into the windows 7 PC and it works perfectly. i also tested the PC connection behind two different 7940. i was thinking it could be the firmware on the 7940 (win 7 users model) but it happens on my 7960 too.
i forced the PC to use full duplex 100, 10 half duplex etc.. i tried every combination possible.
i even made sure the switch port and the PC duplex settings were the same.
i made sure the network card has the latest drivers.
the two computer with problems are a HP and a Toshiba.
i am running CUCM7.1
any ideas?
09-28-2010 09:00 PM
What is the exact version of cucm? What is the 7940/60 phone load version? What is the model of switch to which the phone is connected? What version is the switch running? What does the switch port config look like for the port on which the phone is connected?
Posted from my mobile device.
09-29-2010 09:49 AM
Active Load ID SCCP70.9-0-3S
Cisco Unified CM Administration
System version: 7.1.5.31900-3
Cisco IOS Software, C3560 Software (C3560-ADVIPSERVICESK9-M), Version 12.2(46)SE
, RELEASE SOFTWARE (fc2)
Model number : WS-C3560-48PS-S
interface FastEthernet0/25
description JM Ph
switchport access vlan 11
switchport mode access
switchport voice vlan 15
switchport priority extend cos 1
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
spanning-tree portfast
end
09-29-2010 07:38 AM
Have you tried a different cable from the 79XX pc port to the Laptop? Could be a bad cable.
09-29-2010 09:53 AM
i tested the cable with our tester. the computer had the same problem behind three different phones in two different offices.
I wish it was the cable.
09-29-2010 08:21 AM
It should not happen, update phone firmware, and PC network drivers.
09-29-2010 01:36 PM
Jerry,
SCCP70.9-0-3S is a phone load for a 7970 model IP phone.
Your subject and original problem description indicated this issue was observed with the 7940/60 model phones. The 7940/60 model phones have a similar code base, but the 7970 is of a different code base.
What is the phone load version being used by the 7940/60 phones?
You should try the latest available phone load for those models which is 8.1.2 (aka P00308010200).
Does this problem also occur if you plug the Windows 7 PC into the back of a 7970 model phone running SCCP70.9-0-3S?
I also agree that upgrading the NIC drivers would be a good thing to try.
Shane
09-29-2010 01:39 PM
Shane - It is a 7970 not a 7960, my bad.
we had to downgrade the realtek driver to an older version that came out in 2008.
Jerry
09-29-2010 01:34 PM
we had to down grade the NIC driver on the PC from this;
Windows 7 card driver –
Realtek PCIe Family Controller
Driver provider - Realtek
Driver date – 11/5/2009
Driver version – 7.9.1105.2009
to this
Windows 7 card driver –
Realtek PCIe Family Controller
Driver provider - Realtek
driver date - 2/26/2008
driver version - 7.2.1127.2008
we found the realtek driver on an old forum.
thanks for the input everyone.
Jerry
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