Level 1

53 points

iPhone5 issues with WPA2/AES Wifi

I am using a Dual- Band Linksys E2500 router with WPA2 Personal (WPA2/AES) enabled. None of my other apple products (iPhone4S, iPhone4, iPad2 and the New iPad) have had problems connecting to my router. But everything changed when I got my iPhone5.

Basically the iPhone5 is capable to connect to the WPA2-Personal wifi network but after 1-2min starts to drop network packages, hence, I cannot browse any page (not even the router page 192.168.1.1) even though I still have a valid IP and the wifi icon is shown on my top screen.

I pinged the phone from my router diagnostics page and while I can browse the web with the iPhone5, I can see no packages lost. However after 1-2min the iPhone5 cannot open any websites while still connected to the wifi, it starts to show network packages lost.

A workaround that I found was to create a "Guest" network (which is not WPA2-Personal) or even WEP. There are no issues when connecting to these alternate networks.

Can anyone out there confirm this issue?? Is it software or hardware related?? It seems to me there are issues with WPA2-Personal (WPA2/AES)

Thanks in advance,

iPhone 5, iOS 6

Posted on Sep 23, 2012 6:50 AM

Top-ranking reply

C4RLOCO Author

Level 1

53 points

Posted on May 3, 2013 9:45 AM

Ok Folks! UPS just dropped off my new replacement iPhone5 and I have an update for you: The new replacement works BEAUTIFUL with my WPA2 network and I did not change a thing. I got the new phone, restored my backup and I was able to connect and hold the Wifi connection.

P.S: My only complaint now is that the new phone came with some scuffs 😟

Regards,

C4RLOCO

Durham, NC USA

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544 replies

SunnyE

Level 1

0 points

May 6, 2013 3:20 AM in response to C4RLOCO

Hi Everyone!

After 2-3 months of agony I have FINALLY FIXED WIFI on my following devices

iPhone 4S

iPhone 5

iPad 2

Background - as you'll probably see from my previous post, months ago, I had no wireless signal of these devices since iOS 6.1.x upgrade. All of them are on iOS 6.1.3. All connected to Apple Airport Extreme and one Express setup to extended wireless signal through thick brick walls. My Extreme (older gen) is set to work on 5GHz only, my Express is using both 2.4 and 5.0 simulaneously, which is good for my older devices that dont support 5GHz. I use WPA2 Personal security (AES)

This is what finally worked for me

1) Found old Airport utility, which has more granular settings

2) Switched OFF 'use wide channel' - this made the biggest difference

3) Changed Multicast rate from 12 to 6Mbps - this helped increase the range through brick walls

4) Trasmit power was already at 100%

5) Since I am not in US, I played around with country setting, Venezuela seemed to have slight improvement

So far so good, its been working for a few weeks now.

Spooky36

Level 1

4 points

Jul 30, 2013 1:00 PM in response to Spooky36

Update: We moved onto phone #3 due to even worse issues with phone #2. My wife did NOT restore from backup this time and is instead starting with a completely clean phone and restoring each app, mail settings, etc by hand and so far (no jinx), everything appears to be working much better.

I had heard that this was a possible solution but due to the hassle of re-finding/installing/configuring all of the apps I had not yet tried it. Hopefully this fix holds. Good luck to anyone else out there with this issue, it is quite a nightmare.

opmisk

Level 1

10 points

Sep 23, 2012 6:39 PM in response to GregM1

Just swapped mine out. The replacement is from DN and Week 37. It's working perfectly so far.

Psychor

Level 1

9 points

Sep 23, 2012 9:21 PM in response to C4RLOCO

I use a Cisco 1142N AP in my house. Switching from "AES CCM" to "AES CCM + TKIP" helped. Give it a shot.

jts77

Level 1

4 points

Sep 24, 2012 1:56 PM in response to C4RLOCO

Just an update, I got my replacement iphone 5 yesterday, have had NO wifi issues.

Oct 1, 2012 8:51 AM in response to C4RLOCO

My replacement arrived and works perfectly with WPA/WPA2 so my problem was a hardware one.

Oct 1, 2012 11:18 PM in response to C4RLOCO

Guys my replacement iPhone 5 worked first time, AES/WPA/WPA2 whatever alll work perfectly, just get a replacement!

C4RLOCO Author

Level 1

53 points

Oct 3, 2012 9:29 AM in response to Shaddow

I think we are looking here to a BIG bad batch of phones... simple as that. I mean, why to wait for an update when have people reporting sucesful results with a new replacement (including myself)?

mccosha

Level 1

6 points

Oct 3, 2012 10:30 AM in response to Eric Maier

Apple Support - ask for Greg (engineer) so you may be escalated 2x to get to him. Reference case #

356928723.

He KNOWS there are issues and mentioned 2 internal docs on WAP2/AES specifically.

Shaddow

Level 1

10 points

Oct 5, 2012 4:45 PM in response to lncohan

Incohan: do you have bluetooth on? Try turning it off. Or toggle it if you dont already have it on. That seems to be working for some around here.

Oct 7, 2012 6:58 PM in response to superfox247

Very good, accurate write up! Right on target for my US, AT&T iPhone5. Replacement phone seems OK

Oct 7, 2012 9:09 PM in response to C4RLOCO

I too had the same wifi issues with WPA2 and AES

Today I returned my iPhone and the replacement works 100%

If it helps anyone, my new MAC address now starts with 98:B8:E3:73

MR44

Level 1

0 points

Oct 8, 2012 6:03 AM in response to philmarriott

Of course, there MAY be a way to fix this hardward problem with software. However, it is definitely a hardware problem. The sure thing is to have your phone replaced.

Oct 15, 2012 12:44 AM in response to C4RLOCO

I got the same problem. Accodint to a genius in an Apple store, it's a problem with the firmware (related to DNS), so the unique solution is to go to an Apple store and to ask for a new one.

Nov 26, 2012 1:18 AM in response to dkrohr

I am having the exact same problem as you, it's very likely to be a hardware problem. Those manufactured during September are mostly having this problem.

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iPhone5 issues with WPA2/AES Wifi