This morning when we logged into our site as a host user, we are seeing the DNN pro licence expired warning message:
 

Your DotNetNuke Professional Edition has expired. Please contact sales@dnncorp.com for information on how to obtain a valid license.

However when looking at our licences on the "Activate Your License" tab, they do not expire until July 2011.

License Type	Invoice	HostName	Activated	Expires
Production	CS-ELT-******2	*******		Wednesday, July 27, 2011
Production	CS-ELT-******1	*******		Wednesday, July 27, 2011

What is even stranger is that when logged in as an ordinary user, we do not see this message.
I have checked with our Ops team and nothing has changed on the file system and I have checked the EventLog and nothing out of the ordinary is displayed there.

What would be causing this message to suddenly be displayed?

I have logged a call with DNN pro, but thought I'd ask on the Forum while I wait for their response

Thanks Sebastian, I had logged a call with DNN Support, but because I am UK based their support desk doesn't open until 2pm UK time. I therefore though I'd ask on the forums to se if anyone else had experienced this problem?

Anyway the issue has been resolved. Unknown to me at the time we had a problem with our network and access to the internet was very patchy. I guess that the Host user was trying to access something from DNN corp and couldn't contact it due to the network and therefore the message was displayed.

I received an answer from DNN yesterday saying that the message is only displayed for HOST users - ordinary user do not see this message.