TX power is not working

[greekstile]

Changing the value in the GUI or via SSH is not changing anything. Eko posted a test build to check the issue, but it still does not seem to be working.

Please see here:

http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51985

and here:

http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51982

[macgyver]

confirmed broken tested using builds 12058 + 12121
wl -i eth0 txpwr1
TxPower? is 74 qdbm, 18.50 dbm, 71 mW Override is Off
wl -i eth1 txpwr1
TxPower? is 127 qdbm, 31.75 dbm, 1496 mW Override is Off

[dc]

Replying to macgyver:

confirmed broken tested using builds 12058 + 12121
wl -i eth0 txpwr1
TxPower? is 74 qdbm, 18.50 dbm, 71 mW Override is Off
wl -i eth1 txpwr1
TxPower? is 127 qdbm, 31.75 dbm, 1496 mW Override is Off

What happens if you issue the following command?

wl -i eth1 txpwr1 -d 10

I'm not at home now but I did reduce my power to 10dbm by logging into the router remotely and using the above command - I just can't veryify it as I'm not in range.

[Eko]

Fixed in r12124 - test builds in forum. It was only problem for routers with 2 radios anyway.

[greekstile]

Still not working. Please see my follow up here:

http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51985&start=15

Changing the values is properly reflected when you issue the commands via SSH. However, it appears as if actuality, the power is not changing. Link quality and speed remain constant no matter the mW setting.

[Eko]

Look, you can't see power change on your pictures because you are looking at RECEIVED signal strength. You must check received signal strength on each of your clients. Try like 14, 28, 56, 112 mW (i'm not sure, but maybe some radios can't use insanely low or high numbers, like your 1mW). Each power doubling will give you +3dB on your clients in theory.

Works here on my wndr3300 :)

[greekstile]

Ok, did some more testing this morning with a fresh brain. Testing on the client side, I can confirm, yes, the tx setting is indeed working with the 5GHz radio. However, it is NOT working with the 2.4GHz Radio. I will reopen the ticket with this update.

All the help is greatly appreciated Eko.

[greekstile]

Just an update. As of 12186, the 2.4GHz tx power is still clearly not working. 5GHz is still working fine. Monitoring with Xirrus WiFi? Scanner on my laptop, you can clearly see the signal strength on the 5GHz band drop when tx power is dropped, and rise back up when tx power is increased.

On the 2.4GHz band, the signal is constant, setting tx power from 1 - 251, it makes no difference.

Please reference this thread:

http://www.dd-wrt.com/phpBB2/viewtopic.php?p=303037#303037

[greekstile]

Working as of 12220.