If you are connected to the internet via a router, try unplugging it, leave it for 30s or so and then plug it back in.
Check your firewall and security settings as this can also block certain files from certain sites.
Try the Google Chrome Browser, as this seems to work on the odd site that that IE and Firefox doesnít.
If the above fails, email your ISP as it may be something at their end.
I'm not using a router, so that let's that out.
I'm using Kaspersky. I checked as much as I could on there. 4shared doesn't seem to be on the "blocked" listing
Google Chrome I'm trying to stay away from.....they collect too much info on you.
Contacted my ISP provider. They said it "wasn't them."
Anyway, I sent an email to the 4shared tech dept. They got back to me right away wanting to know in detail what's happening when I try to download?
I'll let you know if they can fix it for me.