We are a small office with 10 client PCs and one Windows SBS 2011 server acting as Domain Controller and Internet gateway. At random times client computers cannot access Internet hosts in the
.co.uk domain (we are based in UK). We never have problems with
.com or other domains. This has been for happening for a few months now.
This issue persists until the server is rebooted or the DNS Server is restarted, but will come back later at a random time.
Can anyone suggest a permanent fix for this issue? I have a background in Linux so this was all the information I was able to provide but I can post further configuration details if told what is relevant to the issue.
Any help will be much appreciated.