Network Problems - Updated new security update, What is wrong?

[SpaceJello]

I don't know what to do, the internet (safari) is pathetically SLOW. Some pages... actually 50% of them don't even upload. Mail is same as well. Adium is perfectly alright. I have no idea what is going on, did network diagnostics, etc nothing seems to be wrong.

I just updated to the new security patch, is that why? Does anyone else have the same problem?!?!

There is another windows computer on the same network, it has NO problems whatever with internet. I didn't have problems either prior to the security update....

 

[petvas]

I have similar issues, but not only with Safari, Firefox has the same issues!
Many pages dont display images and many times if I visit a new site, Safari cannot resolve the name and after thirty seconds if I try again, it works!

 

[petvas]

I think I found a solution. I repaired permissions on both my Macs, rebooted and the problems were gone! I would suggest you try the same!