Integration Solar inverter huawei 2000L

I already know this method of using wifi with homeassitant, but the issue is I can’t move Rpi4 from it’s current location already using it to track aircraft. Home assistant and Flightradar24 on same device
I have looked at @manio’s guide How to connect to SUN2000 from DD-WRT – skyboo.net. Now I am looking for a dual-band router, can’t do ethernet to new router due to the location of Inverter