Config of a LiteBeam AC Gen2 in P2P air link (¿dumb ap?)

Installing and Using OpenWrt
1

Hi.

I finally managed installation of OpenWRT 23.05.5 in two Ubiquiti (Nanobeam and LiteBeam, both AC Gen2). But first, a small schema explaination of my network's target:

Flint 2 + ONT Nokia (main devices of Internet) <==> NanoBeam (as station + AP) ------ p2p air link (point to point) ----- LiteBeam (as client + AP dumb?) <==> TP-Link router (as AP mode to share WiFi?)

Goals? Upgrade from WPA2 to WPA3 wireless security in all network devices and get Internet in TP-Link router.

Problems and doubts? Three:

  • Parameters of p2p link is: AC (5ghz band), channel 149, 27 dBm and 40 Mhz. Is these best options? For Spain respect of communications law, too.

  • No ping from NanoBeam to LiteBeam, but it's odd because in both wireless settings appers connection between Nanobeam and Litebeam.

  • I cannot bridge WLAN-LAN in LiteBeam, so i have red something like "transparent bridge wifi" or "ap dumb" is needed. I have no clue about this, in airOS is super easy to config but here in OpenWRT is more like tinkering.

This is it, more or less.

Thanks for help in advance!

Regards.

2

The bridge mode is called WDS. Select AP(WDS) and Client(WDS) on each end. Then you can place the client in that side's lan as if they were connected with Ethernet cable. This is how Ubiquiti firmware works by default but the over the air signals are not compatible so you need to run OpenWrt on both ends.

3

Selected WDS on each end (AP and client) and no success, i still can't ping each other and no Internet for Ethernet of LiteBeam. Really strange...

Regards.

4

Solved partially:

https://openwrt.org/docs/guide-user/network/wifi/wifiextenders/wds#the_repeater1

But with so low speed (<1 mb/s) and higher ping, how can improve It?

5

Is the signal strength (dBm and MCS numbers) good?

6

I will get a break for a while in this issue, more later come back and i will response you with signal strength (dBm and MCS numbers). Thanks!

7

uiquiti_p2p
uiquiti_p2p726×236 18.8 KB

AC - Channel 132 (5660 Mhz) - 40 Mhz - 26dBm (398 mW)

Is good?

8

-67 is not terrible but also not great. It is good to be -60 or higher. Make sure the two units (especially the dish) are aimed at each other well. The MCS should be higher. Also because both ends have 2x2 MIMO, NSS should be 2. Was this with an idle connection or moving data?

Some drivers report MCS0 / 6.5 TX regardless of the actual speed. RX speed should be accurate though. Usable throughput is always half or less than the MCS speed which is only the raw speed over the air when the transmitter is on, it doesn't account for the transmitter having to turn off often.