/ip firewall filter add chain=forward action=accept protocol=gre src-address=ip.address.of.the.PPTP.server It must be at the right place in the forward chain. If you're not sure, create a dedicated topic and post the export of your configuration there. See my automatic signature for details. The ru...

PPTP uses GRE to transport data. If the PPTP connections seem to be up but no data actually pass through them, look earlier in this thread for the firewall rule necessary to allow GRE to work. As the PPTP clients run on the LAN computers, not on the Mikrotik itself, the rule will have to be effecti...

Updated the router to the current version.
After the update, we can not work. LAN computers behind RB951 cannot connect to PPTP servers.
We stopped work. Help.

P.S. Sorry, I know English very bad.