The certificate entered for server (Server Name) does not appear to be a valid certificate/TLS 1.0

[AkiraX]

If you run into this when integrating your AD with your OneView appliance OR AD integration was working and now it no longer does, one cause could be that your Domain Controller may have TLS 1.0 disabled.

The only way around this issue is to re-enable TLS 1.0 on the Domain Controller.

There was another discussion about AD/Oneview integration here:

https://community.hpe.com/t5/HPE-OneView/Cannot-integrate-with-Active-Directory-HP-OneView-2-00-07/td-p/6869172