[chemtyra]

In the last two days, I have lost the ability to access many websites I was previously able to.
I have two computers, one running Windows XP, the other running Ubuntu. Both have problems accessing the same sites.
I have a Linksys WRT54G wireless router. I have DSL through ATT connected via a Speedstream 5100 modem to the router.
Some of the sites I have now been unable to access.
www.arcamax.com
www.blockbuster.com
www.techsupportforum.com

I have tried both Google Chrome and Firefox. Neither seem to work.
I look forward to any suggestions.

[iRemedy]

Change your DNS Settings
https://www.opendns.com/start/computer/


However, I actually ran into this problem before, and the issue was a failing modem, however, remove the the linksys router, and attempt to access the sites directly through the modem.

Also power cycle the modem (turn on turn off)

If you have the ability to remove the PC from the house, and try on someone elses network, that will give you a huge advantage in isolating the problem, i recommend that you try that if power cycling a direct connection to the modem fails