Is an internet connection the only way to install updates onto the Playstation 3?

For some reason i can't get on the internet on my PS3. I'm also trying to sign up for playstation network but it keeps saying check my network settings. I don't know what to do.Is an internet connection the only way to install updates onto the Playstation 3?
No you can go to the playstation website and burn the update to a CD or flashdrive and then insert it in your ps2 and your setIs an internet connection the only way to install updates onto the Playstation 3?
so far yes...but make sure u dont have a firewall in ur comp and router....or maybe chek network settings on ps3 %26amp; pcIs an internet connection the only way to install updates onto the Playstation 3?
I'll take you right where you need to go





Update: Re reads your question... Dude read your instruction manual for setting up an internet connection. And next time make sure that your question and your sub article for the question are alot more related.