I live in UK and I need a Spanish IP to access some content on the internet.

I rented a VPS server based in Spain, which has a Spanish IP.

Now I folowed [this tutorial](http://www.dd-wrt.com/wiki/index.php/Easy_SSH_tunnels) to create a SSH tunnel to my VPS, so that I can configure firefox to use it as a proxy to connect to websites.

I now go to whatsmyip.com and I can see the Spanish IP, so it seems everything is working fine, right? In fact if I go to wheremyipaddress.com, it says I am in Spain... But I can't access the restricted content anyway! And I've tried a couple of different restricted sites without success...

Do you know what this could be due to? Any ideas?  

Maybe the websites can detect that you're using a proxy and they don't like that?

---

EDIT: I've checked and when I **do not** use the proxy the error message says "*Not available in your region*".   

However, if I **do** use the proxy, the message is something like "*Connection refused*"  

So, probably the website is detecting I'm using a proxy, right? Is there any way to avoid sites blocking you when using a proxy?