No internet at present..

[#1]

All of the devices connected to my router currently have no internet, I have changed my DNS setting on my PC to 8.8.8.8 (google dns) and have restored access to my pc(no other device has access still...
I have tried a tracert to google.co.uk plus.net and community.plus.net all fall over at:
Tracing route to google.co.uk [198.18.1.243]
over a maximum of 30 hops:
  1    1 ms    1 ms    1 ms  dsldevice.lan [192.168.1.254]
  2    14 ms    13 ms    12 ms  195.166.128.191
  3    13 ms    13 ms    13 ms  212.159.2.134
  4    *        *        *    Request timed out.
>>>>
30    *        *        *    Request timed out.

[#2]

198.18.1.243 is not the correct IP address of any website, it's from a special range used by the router to redirect you to the router web page when your Internet connection is down. So it's this issue again:
http://community.plus.net/forum/index.php/topic,116173.0.html
http://community.plus.net/forum/index.php/topic,116903.0.html
Solutions could be to disable Web Browsing Interception, or re-configure the router to dish out different DNS servers, not its own IP address as the DNS server.

[#3]

Internet now back on all devices, normal tracert back now:-
Tracing route to google.co.uk [173.194.41.183]
over a maximum of 30 hops:
 1     1 ms     1 ms     1 ms  dsldevice.lan [192.168.1.254]
 2    14 ms    13 ms    13 ms  lo0-central10.ptn-ag02.plus.net [195.166.128.191]
 3    13 ms    13 ms    13 ms  link-b-central10.ptn-gw02.plus.net [212.159.2.134]
 4    13 ms    13 ms    13 ms  hsrp.pth-gw1-2.plus.net [212.159.1.62]
 5    12 ms    13 ms    13 ms  72.14.223.32
 6     *       50 ms    51 ms  209.85.252.186
 7    13 ms    13 ms    13 ms  72.14.238.63
 8    13 ms    12 ms    12 ms  lhr08s04-in-f23.1e100.net [173.194.41.183]
Trace complete.

did 198.18.1.243 even resolve to google in the first place?

[#4]

just realised the ip i was getting for plus.net was 198.18.1.246 still in the same range as the the one i was getting for google of 198.18.1.243. Very strange maybe I was connected to something in mars.. lol