topic Re: Scan shows multiple SSIDs for what should be one in Unleashed

Scan shows multiple SSIDs for what should be one

chance_douglass — Tue, 09 Aug 2016 17:37:15 GMT

I have a simple set up running with two R500s unleashed. I am not getting the through put I have come to expect from a Ruckus System. 20-30 MBps vs a 170 MBps hardwire. When I do a wifi scan I see the signal for each AP under the configured network name, but I also see a slightly weaker signal under each one with no name. I can't find anything in configuration to cause a second signal. Any ideas on what to look for? Thank you.

Re: Scan shows multiple SSIDs for what should be one

john_d — Tue, 09 Aug 2016 17:43:02 GMT

Do you mean megabits or megabytes? If you really mean megabytes, that's a 160-250mbit/s data rate on a 2-stream AC AP, which is believable 802.11ac performance depending on your settings.

What channelization are you using? 20, 40, or 80MHz? What kind of clients do you have? What are you using to test throughput?

(It's possible the hidden SSID you're seeing is the mesh backbone if you didn't disable mesh on the AP's. It shouldn't matter though — it ought not to have any impact on performance)

Re: Scan shows multiple SSIDs for what should be one

chance_douglass — Tue, 09 Aug 2016 17:57:18 GMT

It is bits. I am only getting 20-30 Mbps. I will check the Mesh settings. This is from a galaxy s5. Channelization is set to auto. I am using the speed test app. In other systems I work on, I will normally get speeds equivalent to the wired connection in the home.

Re: Scan shows multiple SSIDs for what should be one

john_d — Tue, 09 Aug 2016 18:07:40 GMT

Got it. I agree, that seems slow. A Galaxy S5 is a one-stream AC device, which should peak out around 150-200mbit/s on 5GHz and 30-40mbit/s on 2.4GHz.

Based off this, I would guess your Galaxy S5 is on 2.4GHz. Can you confirm via the Unleashed UI what band the device is associated to?

Re: Scan shows multiple SSIDs for what should be one

chance_douglass — Wed, 10 Aug 2016 00:53:34 GMT

The S5 is on 2.4. I can not find the option to steer it to 5GHz. I do have the option to set percentage of clients on 2.4GHz? Should I set it to zero?

Re: Scan shows multiple SSIDs for what should be one

john_d — Wed, 10 Aug 2016 00:59:42 GMT

Ah ok -- that would explain the huge performance discrepancy you are seeing. 20-30mbit per spatial stream on 2.4GHz is actually quite good especially in noisier environments.

As far as 2.4 vs 5GHz band selection, unfortunately that's a complicated topic. Ultimately it is the client's responsibility to choose the correct band to use. AP band steering only can selectively ignore a client's wishes for to associate on 2.4 but that can lead to connectivity issues in itself.

Standalone and ZD managed has CLI knobs to control band steering but to be honest I haven't seen much advantage from using those adjustments with smart phones. Other approaches are to use a separate SSID for 2.4 and 5GHz which is currently not supported by Unleashed.... or turning down the transmit power on 2.4, or disabling 2.4 if you don't need it.