Looks like the days of SkyTV & Netflix coexisting nicely on the same network are over. I have Unblock-us DNS servers set in the router. SkyGO does not like the IP addresses of the Unblock-us DNS servers and stops content being shown.
On the PC I can use a DNS switcher application, to change between the ISP and Unblock-us DNS servers. No such luck on my iPad. Now I have to choose, Netflix or SkyGO. There is no quick DNS changer for iOS. (that I can find)
The SkyGO service gets a 3 out of 10 from me for being so 'prickly'