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Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

[ Edited ]

Hello all,

 

I currently have an installation at my home I'm having issues with. I'm trying to bridge connectivity between a barn (about 400ft away) to my house. Both devices have line-of-sight, with no obstacles in the way. 

 

I currently have it working, but the performance is terrible. The NanoStation only stays connected sporadically, with 1-3Mbps throughput. Signal says -91, noise floor @ -97 on the remote side. -78, noise floor @ -94 dbm on the AC side. 

 

I currently have the Rocket 5AC in Access Point PtMP airMax Mixed, 20mhz channel width and output power around 15dBm. Firmware is at V8.5.12 (XC) Antenna is the airMax Omni (AMO-5G13)

 

The Loco M5 is in Station mode, 20mhz channel width, WDS is enabled, output power is @ 10 dbm. Firmware is v6.1.9 (XW)

 

Can anyone shed some light on what is going on? I'm reaching my frustration level here. I've bought and returned multiple devices trying to get this working, with no real improvements. 

 

**EDIT: Including a screenshot. 

 

Screen Shot 2019-04-19 at 6.08.11 PM (2).png


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New Member
Posts: 7
Registered: ‎12-21-2018
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Re: Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

I figured it out

 

I found this in the log file:

Apr 20 08:29:36 hostapd: ath0: STA XXXX IEEE 802.11: disassociated
Apr 20 08:29:36 wireless: ath0 Expired node:XXXX
Apr 20 08:29:36 wireless: ath0 Deauthenticated Station XXXX (Tx consecutive failure)

 

Which led me to this other post:

https://community.ubnt.com/t5/airMAX-AC/AC-500-Keeps-reassociating-to-AP/td-p/1841186

 

So I changed the center frequency to 5765mhz and now I have this:

 

Screen Shot 2019-04-21 at 7.37.00 AM.png

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Regular Member
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Re: Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

What antenna are you using on the app side? In your screen shot you have your tx power at 0
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Re: Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

mitecnick - I noticed that actually and was confused as to why it was 0 as well. 

 

I have the Rocket attached to an airMax Omni (AMO-5G13) antenna.

Ubiquiti Employee
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Re: Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

Is this really a multi-point setup? I would recommend strongly against using an omni antenna and rocket radio for the AP. Do you have other points where you intend to install CPEs? If not, I would switch this out for a pair of NBE-5AC-Gen2, but two Locos should be fine as well.

In either case, unless absolutely mandatory, I would replace the omni antenna.

Also, please share screenshots of the rest of the configuration of both devices.

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New Member
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Re: Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

[ Edited ]

See below... (this forum software sucks)

New Member
Posts: 7
Registered: ‎12-21-2018
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Re: Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

[ Edited ]

...

New Member
Posts: 7
Registered: ‎12-21-2018
Solutions: 1

Re: Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

I figured it out

 

I found this in the log file:

Apr 20 08:29:36 hostapd: ath0: STA XXXX IEEE 802.11: disassociated
Apr 20 08:29:36 wireless: ath0 Expired node:XXXX
Apr 20 08:29:36 wireless: ath0 Deauthenticated Station XXXX (Tx consecutive failure)

 

Which led me to this other post:

https://community.ubnt.com/t5/airMAX-AC/AC-500-Keeps-reassociating-to-AP/td-p/1841186

 

So I changed the center frequency to 5765mhz and now I have this:

 

Screen Shot 2019-04-21 at 7.37.00 AM.png

Established Member
Posts: 2,051
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Re: Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

Well that's not figuring it out, you had may as well have said no signal. Like Ubnt mention, unless you are going to put up more clients, then ditch the omni and just use another loco for a ptp link.
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Re: Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

I'm putting up more clients.

 

If you look at that other thread, its highly likely there is a bug when using the Rocket AC's in mixed environments with the M5's. Other people have seen the same problem with poor performance/disassociations in the DFS and lower-freq bands. Moving to higher frequencies seems to correct the problem. 

 

 

Established Member
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Re: Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

Haven't run into a bug yet that causes that low of signal, but ya just never know. You could still do ptmp with something like a loco if all clients were within a certain beamwidth.
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Re: Rocket 5AC to Loco M5 -- Terrible Performance (Point-to-MultiPoint)

I haven't noticed this yet either, but I will look into it for future firmware patches to see if there's something we missed.

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