I do not know how anyone relates to this hardware manufacturer, but those software routers that are supplied for home solutions are just trash. The firmware is constantly changing, correcting previous bugs and adding new ones.
I noticed that recently it has become convenient to make testing for end users. The user reported an error - the company will release a patch. But nobody pays me for the days spent, which I am trying to set up a “simple and intuitive” router that does not support routing on this firmware version!
For some reason it seems to me rudeness to serve the raw product. ')
UPD. Until I downloaded the new firmware, the old one, with the stated PPTP workers, did not fry at all. I'm not talking here about testing some supernatural things.