Help, broadband is not working (but not mine)

[#1]

Hi all,
My sister is on PlusNet as well  (see for a little background http://community.plus.net/forum/index.php/topic,65658.msg527746.html#msg527746)
I got a text last night from her saying that her broadband wasn't working but all the lights were on the router, think it's a Linksys.
Texted back with the PlusNet phone number to see if they could help.
She rang today and was told everything was fine with her line and could be a wireless issue. However her desktop is wired to the router.
So I'm guess it could be a router issue or maybe a filter issue, 2 problems are
1) I'm 150 miles away and I can't get up there
2) She's confined to a wheelchair so can't get down to the master socket and I don't think there is anyone else that she can call on at the moment.
So.. does anyone from PlusNet fancy a 30 mile drive to Leeds to help out 
or is there anything in the router logs that might be of help or any other suggestions?
Thanks in advance

[#2]

Mods can you remove or lock this please? Been on the phone with my sister and we have got it going, after a reset of the defaults on the router..

[#3]

Lockinated as per request.