Exchange Active Sync Over Wifi issue

[Kevin McPhail]

Hi everyone

I am hoping someone will be able to assist me with the below.
I am currently having an issue with most android devices in my work place where they are unable to authenticate with the exchange once connected over the wifi.

Breakdown:

We have 3 wifi networks.
1. General (Wifi authenticates over the domain)
2. Guest (Open wifi)
3. Mobile (Open wifi)

The below devices that we have tested give us an certification issue once they have connected to either the Guest or Mobile although they do work once connected to the General wifi or 3G/LTE.
Samsung Galaxy S4
Nexus Tabs
Samsung Tabs

All Apple devices work 100%
My Samsung S3 works 100%

Samsungs S4 Version:
Android version: 4.3
Baseband version: I9500XXUEMJ8
Kernel version: 3.4.5-1938685

Samsung S3 Version:
Android version: 4.1.2
Baseband version: I9300XXELLA
Kernel version: 3.0.31-836582


Any advice will be greatly appreciated.

 

[Kevin McPhail]

No one else experienced the same issue?

 

[steve841]

I seem to have found this issue since upgrading to 4.3 on my Note 2

 

[Kevin McPhail]

Anyone found a fix or any advice ?

Kind Regards,