Some laptops unable to join WPA2 SSID

[Jagan1976]

Hi guys,

I have a problem here with many laptops unable to join my guest Wifi network.

Strangely mobile phones all work ok.

Unable to pinpoint which model of laptops as they are random. I tried with Thinkpad and it works but not on Surface Pro.

How do I trace this issue?

I am using 3802i AP (China H domain).

I am using WPA2 with a 8540 WLC controller.

[Kasun Bandara]

1. what is the frequency you are configured in SSID. is it 2.4GHz or 5GHz. or both?

2. Are those laptops able to see SSID? or cannot see SSID

3. Are you have enough DHCP addresses to lease

4. is this new issue or, is that was there from beginning?

[Jagan1976]

Both frequency are broadcast. 

Laptops can see SSID.

Yes only used few from scope. There are thousands more DHCP avail. 

This is a new site setup. Brand new APs.

SSIDs are used elsewhere worldwide via same WLC, so only difference is flexgroup, apgroup, RF group and AP is Chinese model.

[patoberli]

Which IP address have you used for the virtual-interface?
I hope not an internet routable like 1.1.1.1? You must use a private one there, like 192.168.245.10.

[Jagan1976]

For virtual I am using 192.168.255.33