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I am on 8.0.120.0 on 30 5508 wireless controllers and 1500 access points. Upgraded from 7.6.130.x. It has been stable and have not experienced any issues since the upgrade. Regards.
Keep in mind that there are no plans for 7.6.140.0 release so if you would like to get the various security fixes found in 7.4.140.0 or 8.1, you can use a 7.6.130.x engineering release for some (Poodle Vulnerability) or the next step would be 8.0.120...
The OS you list is compatible with this AP model, however it appears to be a country code mismatch between the AP and wireless controller settings. The specific AP hardware sku you listed is 'D' which is manufactured for regulatory compliance in cou...
Apologies if I am misunderstanding your problem but it appears that the process above works at 1 location but not at 2 other sites. If this is accurate and these 2 which are problematic are remote sites, RDP to machine on each local network and try ...
