Did you check if there wasn't a country regulation update since 6.38? If you're not running superchannel

After updating AP (921GS-5HPacD r2) to 6.41.3, the signal strenght has been lowered in some clients (in 6.38 and 6.34 everything was okay).
Clients - SXT 5nD r2(6.38) and SXT Lite 5(6.38). Someone encountered this problem?

After updating AP (921GS-5HPacD r2) to 6.41.3, the signal strenght has been lowered in some clients (in 6.38 and 6.34 everything was okay).
Clients - SXT 5nD r2(6.38) and SXT Lite 5(6.38). Someone encountered this problem?

How much lower?

哇- b信号水平有很大差异etween those versions ?

Can you downgrade to bugfix or is there something you need to use on 6.41? I'll upgrade a link tomorrow to 6.41.4 and see what happens.

Here is 6.40.4 so long....

Upgraded to 6.41.4 and then downgraded to 6.34.6. No change at all. (Dynadish AR9888 chipset)

Might have to do with specific settings you have or maybe the chipset in the AP/Station. Can you post more info?

I have the same sector + sxt client, might downgrade it tonight as see what happens. Just had to switch to Nv2 and new freq, so don't wanna piss them off any more than what I have.

If it only happens on some clients, maybe open a ticket with Mikrotik and send them a Supout of the affected clients?

哇- b信号水平有很大差异etween those versions ?

Yes

Let's try and please downgrade to 6.34. If this is a bug in the firmware, I think that they fix it, but I would like to know if this problem is in my links or not only.

After updating AP (921GS-5HPacD r2) to 6.41.3, the signal strenght has been lowered in some clients (in 6.38 and 6.34 everything was okay).
Clients - SXT 5nD r2(6.38) and SXT Lite 5(6.38). Someone encountered this problem?

Let's try and please downgrade to 6.34. If this is a bug in the firmware, I think that they fix it, but I would like to know if this problem is in my links or not only.

OK results as follows:

SXT 6.41 + Sector 6.40.6


SXT 6.34.6 + Sector 6.36.4(came out with 6.35 so didn't want to downgrade too far and potentially break anything)


My settings:
Sector:
/interface wireless
set [ find default-name=wlan1 ] country="south africa" default-forwarding=no \
disabled=no frequency=5825 frequency-mode=superchannel mode=ap-bridge \
radio-name="xxx" ssid=zzz wireless-protocol=nv2 \
wps-mode=disabled
SXT:
/interface wireless
set [ find default-name=wlan1 ] adaptive-noise-immunity=client-mode band=\
5ghz-a/n country="south africa" disabled=no proprietary-extensions=\
pre-2.9.25 radio-name="xxx" ssid=zzz

Excuse the bad CCQ, still trying to find good frequency.....

哇- b信号水平有很大差异etween those versions ?

Yes

You appear to running Nstreme have you tried NV2 and check if you also have reduced signal level.

After updating AP (921GS-5HPacD r2) to 6.41.3, the signal strenght has been lowered in some clients (in 6.38 and 6.34 everything was okay).
Clients - SXT 5nD r2(6.38) and SXT Lite 5(6.38). Someone encountered this problem?

Something to consider .....
After updating , are the wireless connection rates faster ?
Reason why I ask , Faster connection rates always have less TX power and lower receive sensivity.
Thus as connection rates increase, the signal strength decreases.

In your enviornment , after your upgrade , are you now getting better/faster throughput ? If so , then it could be partialy due to faster wireless conection rates - which then may look like a weaker signal.

FYI - An initail 6 Meg wireless connection could drop 15 db after the connection rate instreases to 54 Meg or 150 Meg or faster rates.

North Idaho Tom Jones