Can you send an example of the request, which returns this error? Do mask second half of the instance ID.

ok, here it is:
https://services.sentinel-hub.com/ogc/wms/628c1732-5042-4af0-9f16-mask&service=wms&request=getcapabilities

You have an error in your request. After instance ID there should be “?”, not “&”. This rule is there from the very beginning, so it seems something changed on your side.

Sorry about that. Ofcourse you are right. This was a way for me to debug a problem in arcmap where the error is different. Let me check and see if the problem persists.

Thanks for the fast reply.

I’ve checked with the user, and it’s all working… user error.

Sorry for wasting time…

Thanks