Not recieving any Telemetry from controller to Catalyst center

[pielunswe]

Hi!
We're not recieving any Telemetry from controller to Catalyst center after upgrade to Cat C 2.3.7.6 (prev. 2.3.5.6). 
Have tried Update Telemetry - update settings with Force enabled. Also tried Resync. 
WLCs are 9800-80 running 17.12.4, we have 2 HA clusters and one standalone 9800-80, and telemetry is not working for any of them.  Cat C is DNA2 XL single node.

Running RCA in CatC "Assurance telemetry Analysis" - Root Cause Analysis, show no specific errors in the different "boxes" when its done.

WLC9800-3#show network-assurance summary
----------------------------------------------------
Network-Assurance : Enabled
Server Url : https://10.x.x.x
ICap Server Port Number : 32626
Sensor Backhaul SSID :
Authentication : Unknown
AP client event frequency (seconds) : 30


Any suggestions? 
Best regards

[balaji.bandi]

we have same issue, when i have re-sync that data come as expected, but give some time like 3 hours to take effective.

[pielunswe]

Hi!
Thanks for the input. Unfortunately seems waiting is not the solution here. Waited 12h no change.
BR, Pierre

[Dan Rowe]

Is the telemetry connection 'Up' and 'active' on the 9800?

show telemetry connection all

[pielunswe]

Hi! Thanks for reply. This is how it looks in controller.  Peer CatC enterprise IP  -    Source WLC WMI IP. 
Why is there two rows, to and from same IPs?

[Dan Rowe]

There shouldn't be but I would need to look at your configuration to tell you why two entries for the same destination exist. 

[pielunswe]

Hi,

Got this from Cisco TAC, and will try it as soon as change is approved internally. 

WLC#term shell
WLC#function removeall() {
for id in sh run | grep telemetry | cut -f4 -d' '
do
conf t
no telemetry ietf subscription $id
exit
done
}
WLC#removeall

Best regards

[Johannes_Grimm1]

Did the workaround function? Did you have to update the telemetry config afterwards?