Changed IP of Home Assistant

I am running Home Assitant on dedicated Debian Server. I though I was being clever in setting up dedicated network for HA. My home network is 10.0.0., I wanted to create a network with 10.0.1. for all HA devices. So is started with changing the IP of Home Assitant - lol. Now I cant log on, at all. If I can just change the IP of HA back to what I had it then I would be super happy.

Thanks for your help -.
Ty

Change the address on your router to the same ip range you used for home assistant, log on, then change everything back. 10.0.0.1 will not talk to 10.0.10.1 unless the router supports VLAN. Even then it has to be configured, it’s not a plug and play type setup.

I created the second network using a different router. Main router 10.0.0.2, second router 10.0.1.1
While logged onto 10.0.0.2 wireless network I change IP of HA from 10.0.0.15 to 10.0.1.15. I then logged onto 10.0.1.1 wireless network and tried to access 10.0.1.15 from a browser and it hangs on Home Assistant screen and doesnt connect.

Can you see it in the 10.0.1 routers table, does it have that address assigned? Is there a possibility there is a conflict?