12-13-2021 12:32 PM
There is a lot to unpack here so bear with me!
Sh run and sh ver are attached.
Recently replaced 5 older switches with 9200-48P's running 17.03.04. Ran into an issue with some older devices that are 100mbps and have static IP's. They are unable to connect to the network. Most of these are printers of different models.
So far we've change IP's, changed NIC (so MAC), changed cables, made sure the printer firmware is updated, and changed settings on the ports. Removed all QOS from the ports. Set speed to 100 and tried auto. Set duplex to auto, full, and half. I've downgraded the firmware to 16.12.06.
The devices work fine when we installed a 3500 switch in place just to verify the runs aren't bad. We have like 12 devices having this issue.
When I do sho int summery on the interfaces we only see OQD going up.
Solved! Go to Solution.
12-29-2021 05:42 AM
Downgraded to 16.12.03a and the devices have started working again. Going to give it a few day before I declare this has been solved. Downgraded yesterday afternoon and everything is still working this morning.
01-24-2022 05:17 AM
Do we know if this is something that has been fixed in the later versions of 17.x?
01-24-2022 08:01 AM
Hi,
Based on your show run, you hit https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvz76172.
17.6.2/17.3.5 have a fix.
Thanks,
Wojciech
12-13-2021 12:40 PM
Is this happening on all 5 new switches or just one?
Also, have you consulted Cisco TAC?
HTH
12-13-2021 12:50 PM
12-13-2021 01:05 PM
Ok, can you try disabling POE on a port (as Georg suggested) and test? Also, what type of copper cable do you have in place? cat5, cat6, 6a, etc...If these suggestions don't resolve the issue, I would call Cisco.
HTH
12-14-2021 05:53 AM
Using cat5 cable. We also disabled POE and the issue persists.
12-13-2021 12:47 PM
Hello,
I was just about to say that the switchports have PoE enabled by default, you might want to turn it off...but I saw the issue has already been resolved.
12-13-2021 03:55 PM
Force the ports to negotiate to 10/100 Mbps: speed auto 10 100
IMPORTANT: Make sure to include the mode "auto".
12-14-2021 06:09 AM
Doing speed auto 10 100 doesn't remove 1000 as an option. It is being auto detected at duplex- full and speed- 100.
12-14-2021 06:11 PM
@ColeB20570 wrote:
Doing speed auto 10 100 doesn't remove 1000 as an option. It is being auto detected at duplex- full and speed- 100.
I am trying to determine if there is a cable fault or not. This is why I am recommending configuring the port to auto (negotiate) 10/100Mbps.
12-14-2021 06:28 PM
12-14-2021 06:42 PM
Can you try to directly-connect the devices to the switch? I want to eliminate any horizontal cabling "anomalies".
12-14-2021 06:45 PM
12-14-2021 10:01 PM
@ColeB20570 wrote:
I might be able to move one printer and do that. Won't be until tomorrow though.
Printer? Oh, no. Don't move it. I have another way around it.
Is there a PoE phone? Plug the phone into the same patch port as the printer. IF it does not work, directly-connect the PoE phone to the switch.
12-15-2021 06:56 AM
12-15-2021 02:13 PM
Just want to make sure that the phone not only powers up but is able to make calls, right? Powering up is only one slice of the troubleshooting.
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