I have several RB260GSP here and for this one I am not able to upgrade it. Few months ago I was able to upgrade to v2.10, now wanted to upgrade to v2.11.
When clicking on "Download & Upgrade" it says shortly "Upgrading... (Please do not interrupt)", then "Rebooting...", the page is then refreshed but it's still on v2.10. The same behavior can be seen with manual upgrades.
I then tried a manual reset and now the switch is on v2.7p, but the upgrade still fails.
Anything else I can do?