Hello

I have recently gone from ADSL to VDSL with Telecom, or Spark as the like to be called now. With the change came a new modem/router - the Huawei HG630b, and subsequent WiFi problems. In my household we all use Apple devices, including iPhones, iPad and a MacBook. When these connect to the WiFi on the new router, a popup login success message with this address appears: http://www.apple.com/library/test/success.html (there are actually a couple of different addresses that come up, but they all appear to do the same thing). After having to manually close the popup, the WiFi connection works fine - everything loads as expected. It probably doesn't need to be said, but this didn't happen with the previous router. The popup will appear every time the device is unlocked and attempts to connect to the network. Sometimes it won't actually connect to the WiFi until you try to load something, other times it does it straight away. 

From what I can gather, this seems to be a captive portal, but I have no idea why it is now appearing where it didn't previously. Can anyone suggest what settings may need to be changed to address this?