Have you enabled Fast Roaming and / or AI Roaming on your controller? Do the devices you are trying to connect support roaming?

@Cellcom 

 

This seems a strange one, never had to fiddle with RSSI setting when roaming is active, usually it would just connect and roam as instructed.  

 

Are you using a single SSID on all devices via the controller and have you band steering enabled also?   Try it without band steering to see if that helps, or better disable the 2.4 / then 5ghz and see how that looks.

 

What is happening at the client side?  

 

Any screenshot you have would help greatly.

 

@Philbert 

 

Are you using a single SSID on all devices via the controller and have you band steering enabled also?  

 

Yes Single SSID "SCS_BYOD" is configured via controller, and band steering is enabled too, but problem is faced with the clients supported only 2.4GHz band, and even there is no any other client is connected when there is no any other user connected in the network. 

 

As per below image in which client is having single band (2.4GHz) wifi supported only and when RSSI threshold (-74dBm) is enabled, and despite better signals from two APs (-60 dbm and -65dBm), it denied to connect, and if disable RSSI, it associates with an AP with recived signal -76dBm, as shown in below images.

 

 

 

@Cellcom 

i'm facing the same issue also with controller OC200 and 10 EAP 225.

clients are facing an issue that bad signal and speed, i have found that those clients are connecting to far APs meanwhile neasrby EAPs are closer to those clients.

one SSID for both 2.4 & 5, roaming is enabled, band steering is enabled.

i will try to enable load balance so the EAPs will not connect clients with RSSI less than -70 and i will check and update.

 

in addition 2.4 chanel for some APs almost utilized with sometimes more than 80 and 90%.

 

thanks

@ZeroOne 

 

The issue seems resolved partially by enabling AI roaming (though fast roaming was already enabled).

 

Then we swapped the APs, and seems this has resolved the issue.

 

We are observing this since 48 hours, and so for it is stable now, with every client having better signal now.

@Cellcom 

thank you for the update.

i will check at the OC200, but i don't thing that i have this option, i will check it and i will check if i have to upgrade firmware for it

 

many thanks

@Cellcom 

this is a living for university students with two floors (1 OC200 and 10 EAP 225 APs), EAP225 APs are installed at the corridor in each floor.

first of all, i'm wanna to isolate each floor with its SSID & VLAN to avoid any broadcast issues, so if i override the SSID on each EAP i think i will lost the availability to isolate broadcast issues and i can't assign a VLAN for each EAP with override, is it right?

 

my problem as you described, clients are connected to far EAP at the same time there is a nearby EAP with less utilization "far EAP has for example 8 clients and the nearby EAP has only two clients!"

 

thanks

@ZeroOne 

 

Well it will be your choice either you want to assign different VLAN or put it into same VLAN.

 

With this you can at least force the clients to select only best available one, without relying centralized SSIDs made by controller.