topic 5508 WLC lost GUI when upgrading to 8.2.100 in Wireless

5508 WLC lost GUI when upgrading to 8.2.100

Jonathan Hawkins — Mon, 05 Jul 2021 11:29:40 GMT

I have a 5508 with 37 AP's working fine running 8.1.131.0. The GUI is OK and everything is working fine.

There is a bug fix I need in version 8.2.100.0, but when I do the upgrade everything works fine, except I cannot get the GUI to load.

Any suggestions welcome.

I believe this is a browser

Leo Laohoo — Fri, 15 Jan 2016 00:26:49 GMT

I believe this is a browser issue.

Can you be specific about

Jonathan Hawkins — Fri, 15 Jan 2016 17:32:11 GMT

Can you be specific about what the browser issue is?

Try to clear your browser

truemfg88 — Fri, 15 Jan 2016 19:16:50 GMT

Try to clear your browser cache.

Try different browsers. Some

Scott Fella — Fri, 15 Jan 2016 20:59:52 GMT

Try different browsers. Some browsers work well and some don't. This is the crazy piece. I use to use Chrome and it broke after either I upgraded to a certain code or upgraded Chrome.

-Scott

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Can you be specific about

Leo Laohoo — Fri, 15 Jan 2016 22:50:00 GMT

Can you be specific about what the browser issue is?

When dealing with 8.0.X and 8.1.X, I use IE 9 after I upgraded two of my controllers to 8.2.100.0 the browser would break. For 8.2.X, I have to use Chrome or Opera.

Enable the option "Inspect Element" and you'll see the errors.

Still have the problem.

Jonathan Hawkins — Wed, 20 Jan 2016 19:55:25 GMT

Still have the problem.

Tried different browsers, clearing cache, disabling Firewall etc etc.

What port is the GUI on as I get this reported error in the browser

I've run into this issue with

philipsm — Wed, 27 Jan 2016 22:08:16 GMT

I've run into this issue with a 2504. I also noted that while the WLC appeared to be functioning and manageable via console, the GUI and telnet/ssh were broken. Did you happen to check if you could telnet/ssh into your box after your upgrade?

I don't have a fix yet but just wondering about how similar our problems are.

Had exactly the same issue

michel.renfer — Thu, 28 Jan 2016 07:00:49 GMT

Had exactly the same issue while upgrading a 2504 to 8.2.100. Switched back to backup code and all went back to normal.

Anyone opened a SR?

brgds,
michel

CLI is OK but I did not try

Jonathan Hawkins — Thu, 28 Jan 2016 17:28:29 GMT

CLI is OK but I did not try telnet/ssh. I switched back to 8.1.131 which was the previous version, and the GUI is OK again. I will wait for the next release.

Is a know caveat with

michel.renfer — Thu, 28 Jan 2016 18:32:37 GMT

Is a known caveat with reference CSCux75436

Same problem here with 2405

sabadri — Thu, 04 Feb 2016 23:25:09 GMT

CSCux75436 WLC loses default kernel route when dynamic int is created on 2nd port

This should get you back to your backup image (once you access the GUI you can upgrade again to 8.1)

using serial cable, access the CLI

config boot backup
config wlan disable all
config interface vlan management 0
save config
reset > system > y

hope that will help!

It's best not to go to this

cfogg — Mon, 04 Apr 2016 16:05:20 GMT

It's best not to go to this version and wait for them to fix this issue.