We're using McAfee Web Gateway 6.8.6 build 6257 in cluster mode.
Both appliances are member of domain.com and have a OK status to the Domain Controller.
In our root domain we have placed the McAfee WebGateways
We're having 3 child domains, for example child1.domain.com, child2.domain.com and child3.domain.com.
The problem is that sporadic users from child2.domain.com can not get to the internet.
They get the following message.
See the picture below.
Then after 15 minutes the problem disappears and users can go to the internet again.
The other domains having no problems.
Is there detailed debugging information in the appliance I can see?