I have a trouble with Mikrotik RB751U-2HnD as wireless bridge.
From time to time wireless connection is gone, I can see that Rx column shows 0 while Tx has jumping numbers.
Access point TP-Link TL-WR1043N configuration:
Channel: 1 (checked with neighbors as less interferent)
Mode: b-g-n mixed
Channel width: Auto
Max Tx rate: 300 mbps
Security: WPA-PSK / AES
Ethernet port eth1 and wlan are connected into bridge.
I have Linksys E2000 with Tomatousb firmware in wireless bridge laying at same table as Mikrotik, works as a charm without any complain.
Linksys has ~150 Mbps wireless connection. Produces internet speed around 40 Mbps download and 7 Mbps upload.
My MyBook directly connected to wi-fi from the same place in the house has less performance: 24 Mbps and 7 Mbps.
I would appreciate your ideas and comments.
Thank you.
I assume that in the channel width auto mode Mikrotik can’t “understand” current correct width? Did I miss some configuration setting?
Current configuration “BGN-mixed 20 Mhz” is the best I can get for know, but it’s the way slower then play laptop connection to wireless network?
Not talking about Linksys mentioned above.
Why such a big difference?
Can I increase connection speed on Mikrotik? External antenna? Configuration tuning?
check what data rates the RB751 had when it connected with Auto channel width and check the registration table signal tab to see if it used the ht40 rates.
What signal level you had when you were doing that.
What CPU usage you had during the test?
It worked for two days and now I tried to tune some values. After that wi-fi died. I reseted configuration but no luck - wireless connection established and Tx goes but Rx is 0.
I tried just station mode and Rx = 0. Should it move even if it will not bridge laptop request, right?
I managed to ping AP couple of times and that’s it. Result is attached.
I tried change channel width at AP again from 20 to 40, to Auto, tried BGN-mixed, G-only, N-only like in the first post and RB751 connects all the time but Rx rate is 0.
About signal: I took RB and my laptop and went closer to AP, to different places in the house but Rx is still 0.
CPU usage during speedtest was less then 20%, usual level is 7%.
Is it possible that receiver or one of the antennas is damaged?
Is there any solution for RB751U-2HnD wireless problems? I’ve sold about 10 units and at least 5 users complains about they wireless clients are disconnected often, more than one time per day. Every router with this “effect” runs with latest version of ROS, every setup use all default values and only country was changed to estonia for using regulated limits. I’ve waited this router very long time and now very pity to hear such complaints
There’s problem with the wireless driver. We (and many others probably) have send tons of supout’s to MT support.
I really hope one day they come with a decent wireless driver in the firmware so these devices finally become stable.
So far, the only solution is…disable the wireless and use an external AP.
You asked a solution… So far, this is the only working solution I can give you
Feedback on MT 's side, Yes, please send supout and try new ROS version
But for what it’s worth, it’s not solved yet, but getting better on each ROS release so far. So we’re still hoping…
We had +/- 50 in the field. Not one was stable with wireless enabled. Disabling wireless and adding an extra ubnt AP solved the problem. This ain’t an interference problem…
These were all indoor regular hotspot setups, never more then 8-10 concurrent users. We noticed if the client signal was a little weak, the wireless part on the 751 soon started to behave unstable (crashing device, no more throuhput on wireless, unable to connect to it, etc etc) From ubnt we used Picostation M2H to replace the wireless part of the RB751, no more issues since.
