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Level 1

0 points

IOS 5 can't connect to WPA/WPA2 Enterprise Wireless Network

After upgrading multiple iPhone 4 (CDMA versions) to IOS 5.0, I have not been able to get them to connect to our WPA/WPA2 Enterprise wirless network. We use a Cisco Wireless LAN Controller. The wireless network is capable of doing WPA or WPA2 Enterprise with PEAP. These phones all connected to this network fine before the upgrade.

When connecteding to the network, it prompts me for the username and password and when I tap join it sits for about 10-15 seconds then says "Unable to join the network" with a Dismiss button.

It connects to non-Enterprise networks just fine. I have tested it on WPA Personal and WPA2 Personal networks and it has worked on several without issue.

I have tried "forget this network" with no success.

Is anyone else having this problem? I know of at least three Verizon iPhone 4's that have this exact same problem. I haven't seen one working with this configuration yet.

iPhone 4, iOS 5

Posted on Oct 14, 2011 5:07 AM

100 replies

Aug 1, 2012 4:59 AM in response to zerohorn

So, at home I have two routers (both a DLink, different models though), each secured with a WPA2-key. The thing is, I CAN connect the original main router, which is downstairs, but I can't connect to the one upstairs.

What may be causing this -just a thought- is that the one upstairs has a different IP-address (only the very last digit after the dot is changed) so it won't be in conflict with the original one downstairs.

So, I was perhaps thinking you should allow the other network settings on the router with the different IP than the main one. In other words: allow the IP-address of the main router.

I have yet to figure that one out myself, though.

Aug 10, 2012 3:02 AM in response to zerohorn

Okay, so I found what may be causing it.

As I mentioned in the post above, I changed the IP-address of my router upstairs so it wouldn't be in conflict with the one downstairs. Now here's the solution: simply copy the new IP of the router into the primary DNS field.

Your router will then restart and the problem should be fixed, so you can access wifi on your iDevice.

It worked out for me, hope it will for you, too 🙂

Sep 21, 2012 6:56 AM in response to zerohorn

It appears iOS 6 has resolved this issue. In my testing, WPA 2 Enterprise profile persist without the need for a config file installed.

Dec 21, 2012 2:34 AM in response to Gohone

Hi,

The solution from Gohone was for me the right one.

Marijn

tweekerz

Level 1

12 points

Dec 29, 2012 9:49 PM in response to Mellonomics

iOS 6 resolved any WPA2 issues

Jun 12, 2013 1:19 PM in response to tweekerz

And it appears ios7 has broke it (again). 😢

The button to accept the certificate doesn't click when you get to that screen

Jun 19, 2013 1:20 PM in response to Gohone

Thanks Gohone, this worked for our environment too. WLC 5508s with 3500/3600 APs.

Sep 22, 2013 7:13 PM in response to vinautomatic

Vinautomatic - Did you find the solution? I am having the same issue with iphone 5s with ios7. I see button to accept the certificate but it does not work.

Thanks in advance for your help.

Parag

Sep 25, 2013 4:12 AM in response to Paragfromga

guys please help

i m really sick of this ios 7

i am not able to use the enterprise connection in my office

its says certificate not verified

and i am not sure what needs to be done .

please help m killing my data usage over this .. use to work absolutely flawless with ioS6

Oct 9, 2013 11:24 AM in response to zerohorn

Gosh I'm not even sure what I did. I believe I had to email myself the certificate, open it in mail, and then accept it.

This process can be found here: https://discussions.apple.com/thread/3385080?answerId=17273702022#17273702022

IOS 5 can't connect to WPA/WPA2 Enterprise Wireless Network