I am using OpenWrt 19.07.4 on TP-Link Archer MR200, the version from my mobile operator. The main reason for installing OpenWrt was that I wasn't able to make VPN work.
All I mean by the "VPN" is that I want to be able to connect from my notebook to my company servers. There is a software GlobalProtect running on my notebook, that usually seamlessly handles this. It simply works on every other router, but not on that MR200.
Installing OpenWrt wasn't straightforward, I bricked it, had to buy Paspberry PI and to debrick it. But thanks to the instructions from this site I made it.
But, guess what, I am still not able to connect through VPN. I have tried methods from every thread I found, but to no avail. It actually connects, but no data goes through. Sometimes it even works for short period and I can connect to company sites, but it doesn't last long.
I am really stuck here, because I am new to OpenWrt and I don't know how to debug this situation or what to look for. Maybe you could give me some advice?
Honestly, I can buy some other router that will work with default settings, but now it is matter of principle for me to manage it