The upgrade process adds several database tables; not sure if installing an older version of WCS would strip them out. There is the possibility of the downgrade corrupting the db. You may want to open a TAC case and inquire about it.
The 2 feasible options would be to either do a fresh install of the desired version and restore a pre 5.x db backup, or just start all over with a fresh 4.x.x.x. install
You could also try building a test machine with 5.x, make a backup from the production wcs server and restoring it to the test machine and see what happens when you try to downgrade to 4.x.x
Just to satisfy my curiosity, I upgraded my WCS to version 5, took a backup and downgraded back to version 4 just to check if it would work - but no, it refused to restore from a newer version. I saved a copy of the v4 database which restored fine.
We are excited to announce the Second refresh of 17.6.2 EFT/Beta Program for PRODUCTION deployments.
This release is the second qualified EFT/Beta Image and is BU supported.
After previous 17.6.1 CCO, this p...
Listen: https://smarturl.it/CCRS8E33 Follow us: https://twitter.com/ciscochampion The goal for stadium and large venue Wi-Fi is to deliver an exceptional, fast, and reliable wireless experiences to tens of thousands of fan...
We are pleased to announce the immediate availability of the IOS-XE release 17.6.1 for the Catalyst Wireless Controllers. The new code is now posted on the CCO and can be found at this link:
This version now introduces experimental new feature, "Upgrade Advisor, targeted to one of common case generators: what are the supported versions and how to upgrade my current controllers and APs
It supports both AireOS and IOS-XE, covering since ...
Thank you for the overwhelming response to the First and Second EFT refresh of 8.10MR6!
We are excited to announce the third refresh of 8.10 MR6 EFT Program for PRODUCTION deployments.
While the CCO release of 8.10MR6 is just a few we...