Low speed with or without Mesh (help needed)

Installing and Using OpenWrt
1

Hey guys, i have 3 archer c6 v3 with openwrt and set then with batman adv (i choose batman adv because i intend to set some vlans also )

router A - is the one connected to internet
router B - is the intermediary (middle of the path from A to C)
router C - is the one connected to my pc

The three see each other , but somehow router C prefer to connect direct to router A, i tried tweak the hop penaulty and tx power but no sucess, also i got 1/10 of the speed of my internet on the pc connected to router C (super slow)

any tips, thanks in advance !

2

With WDS/ 4addr, you could lock onto a specific BSSID.

3

i have 2 more routers and i think managing vlans would be easier on batman , but im getting super low speeds , backhaul is in 5ghz and even setting hop penalty to the minimum possible the middle node are not used

4

I have had similar experinces with mediatek devices. The 802.11s mesh works great but when you add batman the speed to other direction collapses.

5

If they can see each other directly, then that is the problem.
Batman does not use the HWMP mac-routing built into the kernel, so always seems to choose single hop over anything else.

You could try setting mesh_rssi_threshold to a value other than the Batman default of 0 as this means "connect regardless". The mesh_rssi_threshold is in simple terms the receive sensitivity.
You make it less sensitive by making the value closer to zero.
A value of -65dBm is a good starting point. If that does not fix it, try -62dBm etc. You need to set this on A, b and C at least initially until you work out what is needed. Note: 3dBm closer to zero halves the sensitivity. But these radios are very sensitive so you might need to go as far as -40dBm or even closer to zero if your nodes are close together.