I didn't know 4.5.529 was a beta and needed to be manually installed. I updated and downloads still do not work
I let a download window sit until it timed out and I got an "avast!: Connection timeout" window popped open with the following message:
Internet connection timeout elapsed. Continue waiting?
[Server: '207.44.97.25', Port:100]
Thought maybe this might help with another suggestion to try.