Today i just replacing UPS for the servers. And must shutdown the server and start after the UPS is ready, and after that "again" the RRAS - VPn aren't running well.
So i configure again...
Step 1 : go to properties - IP - uncheck Enable IP Routing and Allow IP-based Remote - Apply - check Enable IP Routing and Allow IP-based Remote - Apply
Step 2 : Try to connect for 30 second if it suddenly cannot connect try repeat Step 1.
After the third try....it was running smoothly...