I have bought proxies from 3 different sellers and I am always having problems with proxies not working. Proxies work for 2-5 minutes that it says "can't connect to proxy server" I try another proxy same thing they work for 2-5 minutes then stop working. I am testing it in my web browser. None of them work for more then 10 minutes
Can this be my ISP or just bad luck with proxies I buy?