Hi,
I used to run a RPi3 as a VPN and DNS-Server (PiHole) and it worked like a charm. Since the RPI3 is a bit oversized for this work I bought a NanoPi Neo 512MB and installed armbian Ubuntu 4.9.x, but I have some issues with it:
- eth0 is only connected by 100/half duplex. I can set it manually to full duplex with autoneg off, but after a few secondes it falls back to 10(!) half duplex. with autoneg on it comes back to 100 half duplex (the amber led is off; cable and switch are ok)
- the MAC-Adress is changing every reboot. I have to fix it manually
- I can set up Pihole to use the Nanopi as a DNS-Server and it works well in the LAN, until I connect over openVPN (over WAN) to the NanoPi. Then Pihole-DNS-Server stops working and I'll get kicked out of VPN. I can reconnect a few times but suddenly the Nanopi will crash.
What can I do? I'm a little bit frustrated right now.
