cant connect to itunes store

I've had the same problem for over 48 hours now. Updated to 7.4.2 - was fine for a few hours then refused to load itunes store, saying connection failed. Safari/Mail work fine. Even more weirdly itunes will connect to internet radio and stream that fine, so appears to a particular problem with connecting to the store, not all of the itunes software. Tried re-installing but no good. Also no luck with a fresh guest account.

The error message says the connection has timed out, whereas if I turn of my internet connection it says that the internet isn't working so ?seems to be at the server end?
Anyone got any bright ideas?

I've got the same issue.
This computer comes up with an error #11333.
I'm connected through a wireless network in my home, but my son's laptop can access the itunes store with no problems.

After reading your post, I turned off my wireless adapter and plug in the network cable. I am still having connection issue to the iTunes store (unknown error 11333)

P.S. The radio in iTunes works just fine.

Excerpt from the network diagnostics in iTunes.
Firewall Information

Windows Firewall is off.

Connection attempt to Apple web site was unsuccessful.
The network connection timed out.
Connection attempt to iTunes Store was unsuccessful.
The network connection timed out.
Secure connection attempt to iTunes Store was successful.

Have had strange partial resolution. I connect from two different locations - one dial up. Other wireless home network to broadband. The problem occurred whilst connect to the wireless network - although it had connect fine before and no changes had been made to ISP/router/wireless setup. Is now back connected to the dial up and works fine. Although need to get problem completely sorted in preparation for iPhone next month!

I am accessing the internet via a wireless network that uses a web proxy server and a secure web proxy server that both require an FTP proxy server as well as an account name and password. I have these settings configured manually in the wireless network settings of my system preferences. I can connect to the internet, but I cannot seem to access the iTunes Music Store. Whenever I try to access the iTunes Music Store, I get an error message telling me to check my internet connection. My roommate uses the same network settings and can access the iTunes Store on his Dell Laptop. I have tried fixing any problems with my keychain settings, but it doesn't seem to do anything. Why does the iTunes Store not work on my computer?

I have the same problem. My network settings are correct, my internet connection is working normally, but I haven't been able to connect to the iTunes Store for 3 weeks now. I've emailed Apple Support and they are no help whatsoever. From what I've seen on this forum, there are many of us having the same problem. It's irritating. I have 2 iPods and an Apple computer. I'm a loyal customer. Don't they want more of my money?
Does anyone from Apple monitor these discussions?

After reading all the posts about this problem, I finally ran the iTunes743Setup.exe. I chose the "Repair" option and now my iTunes Store is working.

how do you proceed to iTunes743Setup.exe."Repair"?