Cisco WLC load profile failed?

hello experts
today i am facing a strange issue, one client have wireless connected the signal is strong but network performance was very poor, while i check it i found it was not connected with the nearest AP device(5 meter), but connected with another much far away AP device(30 meter and have several walls), i did try everything such as reconnect, disable/enable wireless adapter but doesn't help, also at the same time all other client without any problem on the same AP device, and i found this as below screenshot, the "load profile" failed is the AP nearest to the problem client, i am not sure it because it or not and i even don't understand what "load profile" meaning, could someone help on this?
thank you

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beardog1113Asked:
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Hello ThereSystem AdministratorCommented:
Do you see that AP under Radios -> 802.11a/n/ac?
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Hello ThereSystem AdministratorCommented:
'Load Profile' status is generally used as a warning. So don't be considered about it. It doesn't change a behavior of your AP.
How many clients are connected to this AP?
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beardog1113Author Commented:
hello
for all my SSID have 5GHz disabled, so that Radios -> 802.11a/n/ac looks normal and all under "passed" status.

thank you
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Hello ThereSystem AdministratorCommented:
From Cisco expert:
Load profile has to do with the number of clients per radio. Though this is just a warning message, it doesn't kick clients off when they are over the limit.
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beardog1113Author Commented:
hello
then what meaning channel utilization and interface? do you think that is pretty high?

thanks

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Hello ThereSystem AdministratorCommented:
Channel utilization might be caused by too many access points in the same channel, interference in that channel, or too many devices on that channel. So what you need to do is determine if you have one or more than one of these issues.

You can find useful tips here.
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beardog1113Author Commented:
hello
actually this issue happened sometime for other clients, but once try disconnect/connect wireless then will associate with the nearest AP device, not sure thats why this client can't fix it, any other items i need to investigate?

thank you
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Craig BeckCommented:
Load profile is just a soft warning to tell you when than more than a configured number of clients (12 by default) are associated to a particular radio.  It won't stop clients from connecting to the AP or radio though.

If there are less clients than the configured load threshold you may be seeing a bug (CSCva65643).
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beardog1113Author Commented:
hi Craig
then any ideas the mentioned client not connect to the nearest AP device but to more faraway one?

thank you
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Hello ThereSystem AdministratorCommented:
Remove the network profile from the device, get close to your AP and connect it back. See what happens.
Maybe your AP isn't able to manage the client due to MAC address filtering. Check, if the security settings on both APs are matching.

I'd focus on this AP and the client, not WLC at that point.

Please, let us know, if this happens only to the specific device or of there are more of them. Are we talking about laptop or cell phone?

Can you also tell us which channels both APs use?

If you use laptop, update drivers for wireless card. There might be a problem if one of them is e.g. TP-LINK and another is Ubiquity.

AP selection is a client decision. I don't think there is anything to set in the controller for the client to connect to an specific AP. Each client has its own way to connect the AP depend on s/n, interference, signal strength (RSSI) etc.


Here are a few things to try in order to temporarily fix the problem:

- Restart the radio card. Simply disabling and re-enabling the radio card may work. During initial scanning, the client may choose the correct AP.
- For mobile clients, move around. Moving the client around may make the radio card realize there’s a better AP in range.
- Use MAC address filtering. You could block the client from connecting to “incorrect” AP(s) by only allowing clients with specific MAC addresses.
- Change AP transmit power. You could slightly decrease the transmit power on “incorrect” AP(s) or slightly increase the transmit power on “correct” AP(s).
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beardog1113Author Commented:
actually this issue happened occasionally on random client, not very often, usually this will fixed it self on the next day, usually the issue happened on special location of the client computer, if i try move it about 10 or 20 meters, it will connected the nearest AP device, i did try change AP device to same model and looks like it is better during these days, i will keep monitor it.
thank you
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Hello ThereSystem AdministratorCommented:
What was the issue? Have you solved it?
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beardog1113Author Commented:
i did change one AP device, from 2702 to 1852 and in that area looks like no such issue happened again, i will keep monitor it.
thanks
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Hello ThereSystem AdministratorCommented:
Thanks for your feedback.
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Craig BeckCommented:
There's a few things you can do at the WLC to influence clients actually.
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