SPEED and other trouble with RB532

RouterOS Wireless Networking
1

I have some great problem using a RB532,
Using a RB532 in WDS AP-bridge with not more of 25 users registered, the performance are really poor; the btest report me an average speed of 5 Mb/s (tested between the AP and one
client (RB133C) when i make this test the users are registered but they don’t produce a big traffic).

Speed performance isn’t the only trouble because if i try to ping the IP of the bridge the rate of discharged packets are about 10% and the ping average is 500ms the maximum is over 3500ms.
I have tried to improve the speed turning on the nstreme but when i turn on it the maximum speed fall dawn to 300kb/s with a big instability
Looking the resource nothing appear strange the CPU usage is max 35%…

So the question is why so poor performance with only 25 users? To say everything with only one clients the performance isn’t much better about 9Mb/s but stability is much good.
How many real users i can manage with a RB532? At witch speed?

The Router board is the RB532, radio card is the RB52, WDS bridge mode with many clients RB133C with signal better than -56dbm.

Tanks to everyone can help me to improve this situation

2

What are you doing for QoS and bandwidth control?

25 clients with 5mb of throughput is respectable for wireless.

3

I don’t perform any kind of QOS.

5Mb/s respectable? I hope no, because is the worst result than ever, much other in the same conditions report throughput much more better than mine.

I don’t aspect 20Mb/s but 10 is enough for me, looking on the net, and in this forum, isnt a result so far. By the way there are a lot of questions without a clear answer like the enormus lost packet in ping, the bandwidth that slow down to 300kb/s when nstreme is turned on, and what limit the bandwidth if the CPU is under the 50% of average usage?

Tanks for the answerer but im still in the dark

4

You need to start by implementing QoS.

5

What RouterOS version are you running on the 532?

Tom

6

The firmware on RB432 is 2.9.38 on the 133 i have the 2.9.46.

I have tried to make some other tests, disconnecting the 25 users, with only one user i have the same trouble 5.5Mb/s of average speed but unstable.

The test condition are the following:

AP WDS RB532 one user, no polling, no nstreme 2.9.38 radiocard RB52
Station WDS RB133 2.9.46 radiocard RB52

Distance 5km signal -55dbm
Btest speed 5.5 average but very unstable slow down till 200kb/s

At this point i have only two questions:
What is the maximum speed of a WDS link with this hardware?
Can the FM radio (103MHz) with the anetenna close the Mikrotik panel (about 2 meter) and 3kW disturb the link?

I begin to think something about this FM radio

Tanks to everyone waiting some answers

7

Get rid of WDS.

What is your weakest signal tx and rx?

Best I’ve gotten out of a 133c was 8mbps, someone else posted 13mbps from a 133. 532 is capable of more, but the weak link is the slowest part.

8

The signal are enough strong the test 133 is at -55/-57 RX/TX from the 532

i have never seen over 5.5 Mb, but very unstable and inconstant.

9

I had an FM radio station make my 532 with Compex WLM54G unusable. It was mounted about 10’ from the antenna. Moved their antenna up 25’ and problem is gone…

10

I think that your main problem is FM radios (100-200 Mhz the same of the eth cable …)