Server Error on Cisco vManage Monitor WAN and Tunnel Pages

[mitchtowne]

I have a Cisco SD-WAN topology running version 20.3.2.

Everything works fine, but the 'Monitor > Network' section isn't working reliably anymore for the past few days.  Under the Monitor section for a selected vEdge device, if I go to WAN > TLOC (or WAN > Tunnel) I get a 'Server Error, Unknown Error'.  See below:

It seems to match a known bug, Cisco Bug ID CSCvu69390, but there is no fix nor workaround for resolution.  It worked before, but those pages are broken now.  A lot of bugs with Cisco's SD-WAN solution. What can I do directly on the vManage server to make those two pages working again without requiring a software upgrade.

Thank you

Mitch 

[Adrian Jimenez]

Hey Mitch,

This is a known problem as you mention, some data points changed directories from version to version triggering this issue. There might be a way to workaround it by renaming/moving files however it requires access to root on vshell which is only provided through TAC. Unfortunately I don't know think there are any other options.

AJ

[mitchtowne]

Thanks for the reply, I knew it was a reach.  It's confusing because nothing has been upgraded, so data points shouldn't have changed unless some of the data has been corrupted on vManage which stopped displaying some of the monitor details.

[Adrian Jimenez]

Hmm so no upgrade or change took place, interesting. One thing we could try to understand it better is to enable Developer options on a browser and explore the API results received. So open web dev tools (I use Firefox), go to network tab. Clear all activity with the trash icon and then click on WAN > TLOC/Tunnel and see if you get any info from it.

This is just to understand if it's a GUI rendering issue or actual API return data issue. I still can't think of a workaround for this, the upgrade might be you're only way out of it.

AJ