VPN unreachable from Android but reachable from Windows - I am puzzled

Hello,

I am beginner with very basic knowledge of networking.
My problem is, that I have mAP 2n. On quick setup I checked VPN. As I understand, it sets up an PPTP type VPN.
I can reach successfully VPN from notebook with Windows 8.1, and I cannot reach it from Android tablet. I can reach another PPTP VPN from tablet with no problems.

Does anyone have tips what to look for/onto?

Thanks in advance from any tips - please formulate them “for dummies”.

I did look on internet but was unable to solve this mystery. Feel free to ask for specifics.

Enable debug logs for PPTP and you should see an actual error in your Logs when you try to establish connection.

/system logging add topics=pptp