R850 - Strange TX Power Issues

[Vanquisher]

I seemingly am trying to figure out why my R850s are transmitting at such a lower power level. Both are spaced apart at a good distance and there is very little interference on the channels they are on. They are only transmitting at 10dbm on DFS channels which seems incredibly low for the US when the power allowed is I believe 23DBM. They have in the past been transmitting at 22dbm but are now stuck at 10dbm.

Throughput after I noticed the transmit power drop on these on the download side has dropped off considerably, it seems to be capped or struggling at around 650-700MBPS on 2x2 Wifi6 devices. Same room I always used to be able to get 800/800 easily.

Environment:

• Running latest version of Unleashed
• APs are powered by a POE++ Switch (Engenius ECS5512FP) at the full 5GBE backhaul. The AP detects it's powered by a bt switch as it sets that power level. LLDP is on.

Troubleshooting Steps:

• Tried a different switch with ++ power and it made no difference to the transmit power (10dbm only).
• I tried overriding the TX power in unleashed and I set it incrementally up by 3 settings from -10dbm to full. It made NO difference to the AP transmit power. It would not change from 10dbm.
• I verified it is in BT5 power mode via CLI. I also set BT5 power manually in Unleashed. No change to transmit power.

[Cognitive8819]

Not sure if a solution was ever found? but I can share what the cause is.  I went through all steps mentioned, cli power settings on AP and Switch, tried injectors, etc. Came to the same conclusion, despite the correct power settings, the radios were not functioning at full power. What I discovered after many factory resets, was when you change the Unleashed setting of optimize compatibility to optimize performance (enabling DFS channels) this causes the issue. I've since moved away from R650s, but really wish this would get fixed if they ever release a new Unleashed firmware version.

[DaJoJo]

same here. i got a R850, 4x R510 and was doing 450~mbps on download, 780mbps upload. disabled DFS channels, set power to 802.3AT on R850, antenna power to full on R850. Finally getting 820 down/473 up on wifi6. Phone (samsung s24 ultra) wifi connection stays on wifi6 now instead of dropping to wifi 5ghz. (both R850 and R510 AP are approx 4 meter away so expected that it set connection to wifi5G)

so after setting r850 to full power it connect wifi6 to this AP. Manually set R510 to -12dB. So the poor throughput on wifi6/5/2.4 is gone now, but obviously a lot of jitter (~350). speedflex between R510 and R850 is ~350mbit, between R510 and R510 2nd floor and other R510 is ~250mbit. Speedflex from Phone to same AP's is ~530mbit on 5G. Real weird. This started from firmware 200.12 or 13 i think. before AP to AP was 900-1011mbit. it all makes no sense 🤔

and no it's not cables or anything.. all CAT8 and Dlink 10 port business-switch 130watt POE 802.3at connected to KPN V10C modem on glasfiber PON 1gbit internet.  And yes I know it's overkill for a normal household.😆