Vincent-TP wrote

Hi,  @RBL

 

Thank you so much for taking the time to post the issue on TP-Link community! To better assist you, I've created a support ticket via your registered email address, and escalated it to our support engineer to look into the issue. The ticket ID is TKID240710169, please check your email box and ensure the support email is well received. Thanks! Once the issue is addressed or resolved, welcome to update this topic thread with your solution to help others who may encounter the same issue as you did. Many thanks for your great cooperation and patience!

The problem with cloud access has been solved see below for the answer of TP-Link Support:

According to the analysis by our R&D team, the "cloud access" error occurred because on June 14th, you imported a configuration file of a higher version, V5.14.30.20, into V5.13.30.10, which led to a restoration failure. We do not recommend importing configuration files of higher versions into controllers with lower versions, as this may cause unknown errors.

After downgrading I apparently used a backup with a different version. Had to do a reset of the OC200 and then restore with a different backup. After this restore I was able to enable cloud access.