Hi, I have a problem with VPN (PPTP Server) on MT. It used to work for a few months and suddenly it stopped - when I try to connect from my Win10 it says that it can be GRE problem, on MT I can see call requests but without success.
How can I debug the problem to make it work ?
Hi,
Do you have firewall rules enabled on mikrotik?
/firewall filter
add chain=services dst-port=1723 protocol=tcp
add chain=services protocol=gre
Another thing, some ISP-s block gre traffic, I get the same error for my PPTP VPN when at home. Mobile hotspot works though.
If you haven’t made any changes to mikrotik configuration and it suddenly stopped working then you might want to ask your ISP.