Pages constantly fail to load until refresh

[Nudaii]

for about the last 3-4 weeks no matter what browser I use, or sites I visit the "server not found" page is displayed till i hit refresh 3-5 times, this even include google.co.uk etc

it happens on both wired and wireless connections.

my router hasn't changed at all during this time (no settings changes etc) and we are with the same isp we have been with since 2005.

any idea what could be causing this?

anti virus is up to date on all computers/devices

 

[MattW]

What are you using for your DNS servers?

 

[Nudaii]

you know you may just have fixed it for me, i was using AOL's default "obtain dns" however swapping to google dns fixed it seems