device connect wifi rate slow

[willwillwang]

Today, I received a complaint that the speed of an apple laptop connecting to the AP is low. Log in to the WLC and see the following data. What's the situation

 

 

[Nicolas Poirier]

Hello,

Can you check the power transmit level for this Access Point AP-27?

It can be a problem of asymetric transmit power level between the end device and the AP.

The AP seems to have a strong signal from the client but the end device may received a low signal from the AP.

Do you have problem with other devices in the same zone?

[willwillwang]

power level is 5

yes other device also

macbook is very  very hard in my office

[Leo Laohoo]

I am not talking about a MBP.  Look for any other device and see if the behaviour is the same:  Different OS, different platform, etc. 

The objective is to first determine if the issue is client-based issue or a widespread WiFi issue.

[willwillwang]

mac os a lot of problem , windows is very good,this is my testing result.

[Leo Laohoo]

Replicate the issue using a different wireless client.