@Vincent-TP I'm afraid I had too much confidence in the system... ;-) I don't think we took a backup (shame on me, I know) So I think I will have to reset the oc200 and the 10 AP's , and start again...

@Vincent-TP Many thanks for your answer. The problem is that i do not have the credentials of a local account, and the oc does not connect with the internet due to a failing dns-ip-setting. my...

@GRL this does not work. I get the error that i cannot logon because there is no internet connection.

I own a OC200 whith fixed ip setting. Unfortunately, the dns- ip address must be changed, because the one which is in the device is not correct anymore. Is there a way to change it without internet...