@mkck Look at this.. https://community.tp-link.com/en/business/forum/topic/714314

@SergioQuesada

@SergioQuesada to do restore the controller version must match these octets, the last octet may be different

@mkck What Omada equipment do you have? And what is not Omada?

@mkck Are you talking about an access point that is not Omada? In that case, the portal will not work.

@SergioQuesada you can't restore until the controllers are on the same version, when you get the update for your OC300 I don't know, I don't think TP-Link knows either But in the meantime, you can...