I'm going to travel a bit in next weeks, visiting family, but staying in a rv. I'm looking for an easy setup to extend family's wifis to the RV.
So first I bought an ubiquiti mesh UAP. 1st choice, if I can easily plug it in existing router + long cable, I'll be ok.
But now I wonder what I can do if no port are avail/no window to run cable outside/not entering their home because of covid. So I got the idea of installing a Pi 3B+ I have with openwrt.
I plugged the UAP wired in the Pi, and the Pi is a wifi client.
After playing around with bridge/relayd, everything works "almost" perfectly.
It works, but I have a lot of packet loss. Changed cables, it doesnt help.
Setup looks like that (from home, will be different on the road)
Ping from (macbook) to USG (ubi controller) = ~30% packet loss
Ping from (UAP mesh) to USG (ubi controller) = ~30% packet loss
Ping from (Pi3) to USG (ubi controller) = 0% packet loss.
One weird thing I saw is if I put my wlan0 on the Pi in promic mode, everything works fine (no packet loss), until the Pi freeze.
The Pi internal wifi is not high performance at all.
A UAP-Mesh running OpenWrt can be configured as a wifi client and mounted on the outside of a RV it will readily connect to the wifi router inside any nearby house. Even better would be a CPE type device of the Nanostation series, since it can be directed at the house.
My plan is to keep the UAP-mesh with default config, as after my trip I'll join it to my actual network.
I was pointing to the Pi wifi too, but if I ssh to the Pi and ping my gw (over wifi) I have no packet loss.
I tried adding a usb edimax or a tp-link to replace the built-in wifi, but my pi no longer boot when attached (maybe the wlan order change, have to check that). Meanwhile I ordered a small gl.inet to have a B plan in case I'm not able to figure out the problem with my Pi.
Maybe my planned setup is not clear (I speak french).
I want to place the Pi running openwrt somewhere outside the house, where signal is good, then unroll a long rj45 with a UAC Mesh at the end of it toward the rv (maybe not up to the rv, because at one place there is about 200foots between house and rv parking).