C1000 Blank Web UI

[CollinsCochran72880]

I'm working with a C1000 that is functioning as normal, but the webUI has disappeared after an update. I've tried issuing an "archive download-sw /overwrite tftp://TFTP_SERVER_IP_ADDRESS/IOS_filename.TAR" to multiple versions of the software, but I consistently just get a white page.

What is the best way to start over from scratch? I imagine this is some kind of boot variable that is incorrectly configured or similar. factory-reset is not an option on the c1000.

[marce1000]

               - Have you tried other browser(s) too ?

 M.

[balaji.bandi]

if you have console access, check any http config is missing ?

also post below output for us to verify :

show version

dir

show run | in http

[CollinsCochran72880]

I've tried a few browsers, yes @marce1000.

Here's version information:

ROM: Bootstrap program is c1000 boot loader
BOOTLDR: C1000 Boot Loader (C1000-HBOOT-M) Version 15.2(7r)E3, RELEASE SOFTWARE (fc4)

Switch Ports Model                     SW Version            SW Image
------ ----- -----                     ----------            ----------
*    1 56    C1000-48P-4X-L            15.2(7)E1             C1000-UNIVERSALK9-M

Dir listing:

Directory of flash:/

  513  -rwx        3096  May 28 2021 05:39:28 +00:00  multiple-fs
  258  -rwx          34   Dec 8 2020 10:56:20 +00:00  pnp-tech-time
  259  -rwx       46399   Dec 8 2020 10:56:21 +00:00  pnp-tech-discovery-summary
  260  -rwx    38492160   Dec 8 2020 10:56:24 +00:00  c1000-universalk9-tar.152-7.E3.tar
 1027  drwx        2048  May 25 2021 16:55:26 +00:00  pnp-tech
  261  drwx        2048  May 28 2021 03:54:05 +00:00  uploadFile
  779  -rwx          52   Dec 8 2020 11:03:15 +00:00  express_setup.debug
  769  drwx        2048   Dec 8 2020 11:06:18 +00:00  pnp-info
 1541  -rwx    34519040  May 28 2021 04:32:26 +00:00  c1000-universalk9-tar.152-7.E2.tar
 1029  -rwx        5466  May 28 2021 05:07:37 +00:00  config.text
 1030  -rwx        5503  May 28 2021 05:07:37 +00:00  private-config.text
  777  -rwx    34211840  May 28 2021 05:12:36 +00:00  c1000-universalk9-tar.152-7.E1.tar
 1026  -rwx        1636  May 27 2021 16:47:31 +00:00  vlan.dat
  520  drwx        2048  May 28 2021 05:35:48 +00:00  c1000-universalk9-mz.152-7.E1
  767  drwx        2048  May 28 2021 05:35:48 +00:00  dc_profile_dir
    2  drwx        2048   Mar 1 1993 00:00:02 +00:00  lost+found

Show run for http lines

ip http server
ip http banner
ip http secure-server

Right now I do get a very brief loading animation popover, and the switch is serving a page, that page is just blank visually.

[CollinsCochran72880]

What is the easiest way to start from scratch on this switch? You can see in my dir listing there are multiple versions of software, I'd rather just nuke the entire flash filesystem and start over. Is there any downside to that?

[balaji.bandi]

If you like to go that route you can most welcome, if outage not an issue.

i would clear the cache in the browser and try again.

[CollinsCochran72880]

Yeah this is still on the bench getting ready for install so erasing all of flash is fine.

[CollinsCochran72880]

I solved it... it was the ip http banner. Removing that config line brought it back to function as normal.

If there is no path defined for the banner is that what causes this? 

[balaji.bandi · Accepted solution]

Glad it work, yes you need to mention banner path - as you told before it was worked, so i was ingore that option.

here is good explanation :

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/https/configuration/15-e/https-15-e-book/nm-https-banner-inactivity-timeout.html