Can't access one website

[ClareJ]

Hi

Basically I cant access the website for o2; o2.co.uk

My main computer is my desktop, ive also tried my laptop and my itouch. I just get 'Internet Explorer cannot display the web page'. I know its not a problem with the website because its working for other people

Im connected to the router via a cable and the laptop is wireless but both are having the same problem.

I reset the router earlier and it kind of temporarily fixed the problem, now its not working again. I dont want to have to reset it everytime I want to go on that website.

Ive cleared the cache, deleted cookies, flushed the dns, and other various ideas people have suggested from the web searches ive done. Although if its happening to every device on the network it cant be a problem with my computer can it?

Any ideas how to fix this?

 

[DelJo63]

Sounds like the router is being Hijacked; meaning one of the configuration parameters is being changed.

Post back the make & model of the router and I'll get you the info to stop this kind of malware ...

 

[ClareJ]

Hi according to my computer its a 'NETGEAR DG834XX Router'

My brother has control over it, he seems to do some strange things to it! We've been through about 5 routers, all of which had nothing wrong in my opinion.

 

[DelJo63]

Basically I cant access the website for o2; o2.co.uk

www.o2.co.uk is located at 82.132.141.84

NETGEAR DG834XX
Netgear:
address: http://192.168.0.1
username: admin
password: password

It is trivial to attack the router DNS settings and this has been noted in public.
see router hijacking
see also OpenDNS project reference

Here's the process to ensure your DNS doesn't get altered in the future:

reset the router to defaults as you've done before

using your browser access the internal Router Configuration
http://192.168.0.1

your login and pwd are shown above

find the Login control page

CHANGE the login password
eg: if your system login is abcdefg
then consider router-abcdefg-modelNumber

save the settings (which will disconnect the browser AND restart the router)​

wait for things to settle down (about one minute

now get a command prompt (run->cmd) and enter

ping www.google.com​

you should get lines containing timing info

Reply from 66.102.7.99: bytes=32 time=17ms TTL=54
Reply from 66.102.7.99: bytes=32 time=19ms TTL=54

Ping statistics for 66.102.7.99:​

ignore the actual IP addresses, yours may be different.

No virus will be able to alter the router ever again

 

[DelJo63]

another issue

There is a file located at \windows\system32\drivers\etc named hosts
which can cause issues as well as help avoid known bad sites.

see the site http://www.mvps.org/winhelp2002/hosts.htm for instructions.

be sure to set the file r/o after the update; get a command prompt and enter:
attrib +r \windows\system32\drivers\etc\hosts