I've had enough of speedtouch!!!!
I have a 510V4.
I'm also a Network support techy and it took me ages to get the firmware sorted on that router. Once i got the firmware sorted it (a) lost my settings, not much of a problem (b) wouldnt let me in the router with my password or factory password!!!! THEN....(c) took me ages to find out how to do a factory reset on it, which i can tell you wasnt easy!!!!!!
Now if a regular home user was to try that then they would have no chance!!!! Routers should be made easy enough for your mum to configure it.
I'm going down the Netgear or Draytek route for sure. Draytek have some great features in their software and netgear have the same but its made all simple.
(gasssp) rant over