[Solved] Running Wireguard on Unraid prevents connection with a device running HAOS

I currently have Unraid running on a computer and homeassistant (HAOS) running on a separate raspberry pi. When away from home, I was previously connecting to both machines via a wireguard tunnel setup on HAOS which worked perfect. I decided to setup wireguard to tunnel through Unraid instead to offload services from HAOS. The tunnel worked and I am able to connect to Unraid server with no issues but unable to connect to the HAOS server. I then realised that this is because whenever wireguard is active on Unraid, the Unraid server and HAOS server can not connect to each other. With wireguard disabled on Unraid, I am able to ping HAOS from unraid but when wireguard is turned on unraid, i am unable to ping HAOS. When I was running wireguard on HAOS I did not have this problem.

Wireguard settings:

With wireguard on (192.168.1.202 is the local IP of HAOS):

With wireguard off:

Things that I've tried:

- confirmed wireguard is not runnning on HAOS

- deleted wireguard addon from HAOS

- ensured "Use NAT" = Yes and "Host access to custom network" = No

- made sure that the network pool on wireguard is different from my router's network pool

- able to access my router's default gateway through Unraid wireguard tunnel

Does anyone have any idea what else can i try?

EDIT:

Apologies, I just realised in one of my peers, I put in HAOS IP in allowed_ip which is causing the issue, all good now.

Edited June 20, 20242 yr by ssassassa9