With most of the vpns it is often the case. They have issues that put their users' data in trouble and at the risk of leak. They have usually bandwidth issues or connection time out problems. Sometimes the ip addresses are not registered or they do not have encrypted connection. Due to all these reasons I always choose my vpn provider with utter carefulness and with much research to avoid any problem regarding my online privacy in future. Next time, you shop for vpn always look out for GENUINE reviews and also especially on shareware sites and review sites.