Unify AP LR - Roaming issues

[Bionic]

Hi,

I have 2 x AP LR(non AC) in my home. They are more than 40M apart with many walls in between. One is in my bedroom and the other is in my entertainment area. During the day, some of our devices connect to the bedroom AP when the other AP is just above us. I tried changing channels, placing them on the same channels, reducing the power and channel width but they behave very strangely. I understand that the Clients are responsible for roaming and not the AP's bu if i toggle the wireless switch on and off, it still connects to the furthest. There are some odd days that 90% will connect to the correct AP. Please help.

 

[yogidabear]

Turn on fast roaming and see if it helps and dont bother scanning for channels and power just enable the AI as per the screenshot it will check every day if you need anything updated

 

[PhireSide]

Play around with minimum RSSI setting on the devices. Basically you set a cutoff level whereby the access point kicks the device off, and hopefully by then the other AP will have better signal to accept the connection.

More reading: https://help.ui.com/hc/en-us/articl...I (Received Signal Strength,on a per AP basis.

 

[Bionic]

Turn on fast roaming and see if it helps and dont bother scanning for channels and power just enable the AI as per the screenshot it will check every day if you need anything updated

View attachment 901216

Hi. I had AI enabled. Where do i find fast roaming. You can notice my Client experience is nowhere near yours.

 

[Bionic]

Play around with minimum RSSI setting on the devices. Basically you set a cutoff level whereby the access point kicks the device off, and hopefully by then the other AP will have better signal to accept the connection.

More reading: https://help.ui.com/hc/en-us/articles/221321728-UniFi-Understanding-and-Implementing-Minimum-RSSI#:~:text=Minimum RSSI (Received Signal Strength,on a per AP basis.

View attachment 901222

I dont think these AP's have the RSSI option. I think its only available on the newer models?

 

[Bionic]

I dont think these AP's have the RSSI option. I think its only available on the newer models?

sorry. didnt enable the feature. sorted now. Will fiddle a bit. tx

 

[yogidabear]

Hi. I had AI enabled. Where do i find fast roaming. You can notice my Client experience is nowhere near yours.

Thats nasty meaning 60% and do you have multiple SSID, guest network etc? Maybe disable those as most times people really dont need them and enable just because they can. Fast Roaming is a setting when you edit the wireless network and click advanced.

 

[Bionic]

APs were disconnected on the controller for this weekend. This is due to either me enabling fast roaming or the rssi. Clients still received internet with good signal but was a hit n miss. Pages loaded longer and sometimes fail. Speed tests were all over the place compared to ethernet.
I have decided I want to redo my network. Do I manually set my channels, channel power, width or leave on auto with AI enabled? What other basic settings I must do to ensure optimal performance? Thanks.

 

[PsyWulf]

Lower the AP power,use same channels and configure minrssi
The original Zero-handover that worked on old devices was replaced with fast-roam which is not compatible with them

 

[yogidabear]

This is due to either me enabling fast roaming or the rssi.

My apologies I knew fast roaming was an issue for older devices but I didnt think it would cause problems with Gen1 Ubiquiti gear.

 

[Bionic]

My apologies I knew fast roaming was an issue for older devices but I didnt think it would cause problems with Gen1 Ubiquiti gear.

No stress dude. Didnt know about fast roaming before. Thanks

 

[Bionic]

Lower the AP power,use same channels and configure minrssi
The original Zero-handover that worked on old devices was replaced with fast-roam which is not compatible with them

Perfect. Will give this a bash later. Must I turn on AI?

 

[PsyWulf]

Perfect. Will give this a bash later. Must I turn on AI?

Not something i've done personally,I'm manually managing mine and tweaking as needed

 

[Bionic]

ok so i redid my network. AP's reset to defaults. Then AP's set to same channels, power low and width 20. Fast roaming and AI off. Im currently broadcasting 2 SSID's so i took advantage of this when i did the RSSI. For testing, i split the SSID to the different AP's so i can connect directly to an AP. I then took an average signal of devices furthest to each AP. I set -68 for both. So far everything seems to be working well. Will revert if i have any issues. Thanks for all the help!

 

[SauRoNZA]

ok so i redid my network. AP's reset to defaults. Then AP's set to same channels, power low and width 20. Fast roaming and AI off. Im currently broadcasting 2 SSID's so i took advantage of this when i did the RSSI. For testing, i split the SSID to the different AP's so i can connect directly to an AP. I then took an average signal of devices furthest to each AP. I set -68 for both. So far everything seems to be working well. Will revert if i have any issues. Thanks for all the help!

No no no, you don't want them on the same channels....you want them as far apart on less congested channels as you can get.

Fast Roaming best left on as well.

I wouldn't fiddle with the RSSI unless absolutely necessary.

However be sure not to enable the High Performance mode (Beta) it just causes endless kak.

 

[PsyWulf]

If you want "seamless" you run them same channel. That flip flopping between ap's with same SSID in zones where signal is fairly similar strength is due to channel hopping
For different SSID use different channels

 

[PsyWulf]

No no no, you don't want them on the same channels....you want them as far apart on less congested channels as you can get.

Fast Roaming best left on as well.

I wouldn't fiddle with the RSSI unless absolutely necessary.

However be sure not to enable the High Performance mode (Beta) it just causes endless kak.

Did you actually read that he has old UAPs that dont support fast roam?

 

[Bionic]

im actually not going to change anything as its working great at the moment. tx

 

[SauRoNZA]

Did you actually read that he has old UAPs that dont support fast roam?

Oh right.

I only saw LR’s.

Didn’t consider they were the old 802.11n ones.

But then it should simply be inconsequential and do nothing anyway.

 

[Bionic]

RSSI is a pain to get perfectly right. Its not a one size fits all. At certain areas of the house, wifi goes on and off due to the signal. Will need a bit of tweaking over the next few days to get it right.