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Hello Cisco WLAN-experts,after upgrading a 9800-L-C from 17.3.6 to 17.12.6a I noticed a Telemetry alarm on Cisco Prime:Catalyst 9800 telemetry coral connection failureOn the 9800-L-C I can seen the following broken pipe problem:WLC-9800-Guest#show t...
Hello Cisco WLAN experts,this 9800-80-WLC using 8 wncds shows a quite confusing distribution of Site-tags to wncd-processes:Initally I used a building/area-number inside each Site-Tag to add APs to it using Filters and Regex-expressions.But it looks ...
Hello Cisco WLAN expert,in the dawn of a planned SW-Upgrade on our 9800-80-WLC 17.9.5 it was suggested to reboot all APs on beforehand.Unfortunately several 9130-APs did not survive the procedure and struggle to boot up again correctly apparently. W...
Hello Cisco WLAN Experts,this 9800-80-WLC running 17.9.5 is showing the following message in short time distance: 13351597: Dec 17 2025 12:00:02.992: %PKI-2-CERT_SHADOW_INSTALL_FAIL: Content-Type indicates we did not receive CA certificate for Trustp...
Hello Cisco WLAN experts,I found recommendations in this forum to reload Cisco APs in front of a SW-upgrade or on a regular basis to avoid problems on certain SW-versions of the 9800-80-WLC and 9130 / 3800 / 2800 APs.Now I found out that the Cisco IO...
Hello Leo,in this case the following Field Notice is available and also Bug Fix.https://www.cisco.com/c/en/us/support/docs/wireless/wireless-lan-controller-software/225443-validate-and-recover-catalyst-aps-on.htmlSee Readme for BugFix APSP2 17.12.6a ...
To summarize all the possible pitfalls, I have come to the conclusion to upgrade from 17.9.5 to 17.9.8 firstand jump from there to 17.15.4d hopefully finally.Release-Notes 17.15.x contain the following advice for Upgrade path from 17.9.5 with 9130 AP...
Hello Leo,Customers using Cisco IOS XE versions 17.12.4, 17.12.5, and 17.12.6 on platforms C9124, C913X, and CW916X are affected by another issue where cnssdaemon log file in the /storage partition grows continuously. This log file can grow approxima...
Hello Cristian, thank You very much for the basic installation information regarding telemetry. Unfortunately, this guide does not show how Ican disable telemetry. Do I need to delete every single subscription ? Or is is sufficient to delete netconf-...
Hello Crisitan,Thank You very much for this information concerning a Prime 3.8 telemetry issue towards 9800-WLCs.We are running the Prime on V3.10.6 and without telemetry issues towards a 9800-80-WLC.Do You know how I can stop or delete telemetry on ...
