I can connect my VPN only once after my computer boots, but after I disconnect, I lose connection.
I run a MacBook Pro running OSX 10.7 from 2011. As the title says, I can connect to my VPN just fine, but right after I disconnect, I cannot connect to the internet despite my network status claiming to be connected to my router, and not finding any problems with my connection. I also cannot connect to my VPN again when this happens. I have to reboot my laptop for my network to work normally again, and the same thing happens every time. How do I fix this? Is this a network/router issue, or is this something deliberately done by my ISP?