Please confirm below details first.
- Did you already configure your SZ on 5.2.1?
- If yes, did you directly upgrade and setup the SZ on 5.2.1 or upgraded from a previous version?
- Was a cluster backup or configuration backup created during the upgrade? If yes, you can downgrade using cluster backup. If not, then you have to factory reset the controller >> downgrade it and then setup it again from the scratch.
For yours and everyone's understanding, please refer some best practices to avoid issues when moving between controller firmware.
- Always refer the support site for the recommended firmware or reach-out to support.
- If starting from scratch/fresh install, always choose the most recent firmware build tagged as MR (Maintenance release) or start with recommended version mentioned in support site.
- Whenever upgrading the controller firmware, always choose "Backup and upgrade" option, not "Upgrade". Choosing "Backup and upgrade" helps you to easily downgrade the system if there are any issues encountered on newer version.
Regards,
Syamantak Omer
Syamantak Omer
Sr.Staff TSE | CWNA | CCNA | RCWA | RASZA | RICXI
RUCKUS Networks, CommScope!
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