I've been getting the same. My browser wont even find the forum. The average seems to be that for every 2-3 days I try, I can log in once. If anyone on the forum needs to contact me for something, you can find my email through my website in my sig.
for me usually if i back up and click the link i want to go to again it will eventuall let me or if i wait a few hours and then try again. it's annoying :/ but chaz knows about it