Ok, I guess I'll try my hand at cybermancy/techno-wizardry and see if I can help you guys out. This is going to be long.
First thing you might try is deleting your browser history. Unfortunately that means the cookies too.
Second try resetting your connection manually, by going to the start button in the bottom left corner, the run button that should be in that pop-out, and type cmd.exe in the run window, then when the command prompt opens up type ipconfig/ all (the space is important, don't forget it). A note on this, I've never used vista or win 7 so I don't know how to get to the command prompt on those, or if they even have it.
Third, re-start your router.
Fourth, try using Jdownloader to grab those files. Simply install it, let it update, copy the link of the file you want, and set that to download. You might have to wait a few seconds to put in the captcha.
Ok, now were getting into the complicated stuff, and this isn't for the weak of heart. If you don't have firefox, I suggest you get it because it's the last solution I can think of. What we're going to be doing is using firefox's built in proxy tool to fool filesonic into thinking your I.P. is something other than it is.
1. get firefox (I know but some people just don't listen)
2. Now that you've got firefox you're going to need a proxy IP, I usually use a seperate browser to find this because you're going to need to test them out.
I've been using
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recently.
3. Now were going to familiarize you with firefox's proxy tool. Open firefox and click on tools in the top left corner, go to options and click that. Your options window should be open now, go to the advanced icon (it's a little gear symbol) in the top righthand of that window, and click on the network tab. There should be a box that says connection with a button that says "settings" click that button, and then choose the little dot that says manual proxy configuration. This will light up a box that says "HTTP Proxy:" before it and another that says "Port:". What will go in the proxy box is a sequence of 4 numbers seperated by periods like this : 111.11.111.111 and filling out the port box is pretty self explanitory. Once those are filled in you can click the "OK" button and use the proxy. (A note on this, I'm using an ooooold version of firefox so your user-interface might differ a bit, but you should be able to find what you're looking for.)
4. Allright, now that you know what to do with the proxy it's time to try a few out. Go to the site I linked, and grab one of those proxy addresses! Any with the PL symbol next to them are useless so don't even bother. I find that using a proxy from my own country or one in close proximity gives me better speeds (I'm in the U.S. so a proxy from the ukraine is probably going to be slow as shit). Try to pick one that has both bars almost fully green. Now plug the proxy address and the port into their respective fields in firefox and hit ok. Go to google in firefox (we're testing the proxy), if firefox doesn't take you to google, and instead some other site, the proxy is a dud and you're going to need a different one. It will also be useless if you get a message saying you're using the CODEEN service (I'm not sure what that is supposed to be, but it IS shit and useless for what we're trying to do). Once again you will need a different proxy. If google loads up fine you should be good to DL the file you want, unless the proxy has been used for that already, in that case just use a different proxy.
5. Alternatively, you could just google "free proxy list".
6. Don't get discouraged, I've spent a half hour or better looking for a good proxy some days. After you've done it for a while you'll be able to recognize the CODEEN servers by the ports that they use.
7. Now you've got the file you wanted, (it might take longer than usual, but hey, you've got it now!) and you want firefox to go back to normal. Just go back to the window that you typed in your proxy and click the dot that says "No Proxy" and you're good to go.
Hope that helped you guys. If it didn't, I'm quite sorry. Also I'm getting a strong feeling of Déjà vu here.