SBS 2011 network. About 10 client machines.
Has started having some DNS inconsistencies.
Certain internet domains are not available.
Don't know how many. Shaw.ca is one of them.
Running off a SOHO D-Link DIR-655 Router. Updated firmware. Switched router DNS from OpendDNS to ISP's. (Telus ADSL). No Change.
Have done updates on the server and rebooted the server.