Wireless iPhone issue

[Abhradeep.Banerjee]

I have attached the image.

1) Basically all users are able to connect to internet, send email via exchange. But for iPhone I am unable to send email.

2) Wireless Router is unable to connect to internet.

Regards

Deep

[Leo Laohoo]

Wow.  Not a lot of information to do any troubleshooting.

[Abhradeep.Banerjee]

what information do you need?

The Access Point and Wireless router has just been added.

They are using MS Exchange 2013 for email using the MAPI protocol.

Email is working fine on android, laptops and desktop systems but not iPhone.

[Leo Laohoo]

Email is working fine on android, laptops and desktop systems but not iPhone.

So the iPhone can't send e-mail?  Using the e-mail application or using web-based mail? 

Have you tried testing the e-mail settings by adding GMail and/or Yahoo settings into the iPhone Mail app and determine if it works?

[Abhradeep.Banerjee]

Nope....If it goes by 3G/4G network it works....It can go to Internet without any issue...as well as sending email....Problem arises when connecting to Internal Network via the Wirless AP it doesn't send or receive messages.

[Leo Laohoo]

Ok, then this means that it's not a wireless issue but a possible routing issue.  But then again, if this issue is only affecting iPhone then it points to me that it could possibly be a settings issue with the main server.

[Abhradeep.Banerjee]

Just an update I tested their android devices as well it has the same problem. But when I connect to my exchange else where it has no issue.

Could it be due to ASA settings? 

I know the Exchange is using MAPI protocol.