Has anyone used a proxy before? Strange problem

[blocked11]

Hello everyone. I use proxies from time to time because many sites are blocked where I go (I travel on work). I use web proxies. They open the blocked sites for me, but that's it, I cannot do anything else. I cannot post, share, etc. I disabled all ad-blocking software. I have no other add-ons that disable javascript. It's a problem that happens in every site I visit and every computer I use.

I mainly want to post to forums, but when I log-in using a proxy, I am unable to post or do anything. The web proxies have options to allow scripts (etc.), everything is ticked properly.

Is there any workaround? Many thanks.

[FarhaS]

There can be to possibilities behind you are getting blocked. First your system might be having malware which are causing the issue. Second the site which you are using for posting are considering you as a spammer. Try to contact the site admin. When you are blocked the site provides you a message box to deliver a message to admin. Contact them for the issue.