Newbe Dev Stack

Answer : In case, someone else faces this same problem, a possible solution (if you are using windows OS), is to follow the process below: Press the Windows Key Search For Internet Options Click on "Internet Options" Click On "Connection" Go to LAN Settings Uncheck "Use Proxy Server for LAN ...." It should work but the permanent solution is to make sure you turn all software that might be automatically setting up proxy for you.

Answer : This is caused by a change for security reason in kernel 3.18 [1]. There are two ways to fix this. First approach is adding this rule to the file /etc/ufw/before.rules before the line # drop INVALID packets ... -A ufw-before-input -p 47 -j ACCEPT Second approach is manually loading the nf_conntrack_pptp module. You can do this by running sudo modprobe nf_conntrack_pptp To load this module on every boot on Ubuntu, add it to the file /etc/modules . For more recent versions of ufw a solution is instead: sudo ufw allow proto gre from [PPTP gateway IP address] sudo systemctl restart ufw Add nf_conntrack_pptp to /etc/modules-load.d/pptp.conf One liner echo nf_conntrack_pptp | sudo tee /etc/modules-load.d/pptp.conf Explanation The accepted answer works for me, especially the 2nd suggestion--loading the nf_conntrack_pptp kernel module--as opposed to modifying my iptables firewall. My laptop firewall is otherwise unmodified. sudo ufw enable without excepti...

Answer : For me what solved this is to work only on wifi or only on wired ethernet connection (I disabled the wifi adapter (in Control Panel\All Control Panel Items\Network Connections in win10) Now everything is stable! I had the same issue and inspired by thedrs answer, I disabled all network adapters I didn't need for the VPN connection. It turned out that the Hyper-V machine (and the corresponding virtual Ethernet adapter) I had running were causing it. After shutting down the virtual machine, no more reconnects occurred.