VPN not working in Mikrotik?

Question

VPN

Hello people, there are two Mikrotiks, one in the store, the other in the office.
In store A-provider; in the office B-provider.

Initially, there was an L2TP tunnel, then, as far as I understood, provider A began to block ports. Then I changed it to PPTP, everything worked, for about 2-3 days. And now PPTP does not work either, and I called the provider, he says that I have problems, everything works for me without changes.

It is difficult to formulate the question, I hope at least someone understands the essence.
Maybe someone knows Alternative options for communication Office-Shop.
Thanks in advance.

Answer 1

And now PPTP doesn't work either

Most likely, provider A piZDit like Trotsky. PPTP is blocked very often, for reasons completely incomprehensible to me. Well, opsos understand why. But why do ordinary wired providers do this?
There are two options:
openvpn
ipsec
There is also just an IP-IP tunnel

Answer 2

On Mikrotik, the IPSEC + L2TP bundle works fine and is configured in 5 minutes

Answer 3

Thanks everyone for the replies.
Delivered SSTP everything works, but it is still interesting why L2TP and PPTP do not work.
I haven't had time to figure it out yet, but I'll be sure to come back to this issue sometime.

Answer 4

Firstly. Do you have an external dedicated address? If yes, then IPIP or OSPF