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Unable to connect iPhone 4 properly to Time Capsule

I am unable to properly connect my iPhone 4 (running iOS 4.2.1) to my home network running a Time Capsule. My iPhone 4 shows the network. If I click on the network to connect, often after entering the password I am told the iPhone is unable to join the network. Sometimes, I can connect, and I get realistic values for the phone's IP address, DNS, and other items, but after a short time, I can no longer do anything that requires WiFi. The WiFi symbol still shows, and I still appear to be connected, but surfing a web page, going to Facebook, etc., just hangs.

I completely re-set the Time Capsule back to factory defaults. I've also completely wiped the iPhone clean and restored it from scratch (as well as resetting all network data, and forgetting my home network and re-adding it). None of these procedures has changed the problem behavior.

I've gone to an Apple Store and spoken with a Genius. While there seemed to be no problem with my phone, I was given a new one (great service). The problem remains.

The Time Capsule is a simultaneous Dual Band II. It runs 802.11 n only on 5 GHz, and 802.11 b/g only on 2.4 GHz. The two networks have different names [MyNet and MyNet (5 GHz)]. It runs WPA2 security. It is set for wide channels (turning this off did not help), and channels are selected automatically.

I have several Macs, an iPad (running iOS 4.2.1), an AirPort Express N, and an Apple TV (first generation), an Apple TV (second generation) that have no trouble getting on MyNet (5GHz). I also have a Blackberry Bold 9000 that has no trouble getting on MyNet (using 802.11 g).

The Time Capsule is running in bridge mode because my home internet is FiOS, and comes into the house as a MoCA cable connection without ethernet, so the FiOS router supplies the ethernet connection to the Time Capsule. The FiOS router supports WiFi, but only 802.11 b/g, so I usually turn it off and let the TIme Capsule run the WiFi. The FiOS router performs all DNS activities.

This whole setup worked flawlessly until recently. I have the Time Capsule visible through Back to My Mac everywhere I go, and all my other devices connect just fine -- as the iPhone used to do. (Could it be the recent firmware upgrade for the Time Capsule?) Everything still works flawlessly, except for the iPhone 4.

When I enable the FiOS router's independent WiFi (b/g), running WAP2 with the same password as my Time Capsule network, and have just the iPhone connect to that network, all is perfect.

I'd prefer not to have to run the FiOS WiFi network JUST for the iPhone, since I'm in a fairly dense development with LOTS of WiFi near me and want to avoid even more congestion.

Does anyone have any suggestions? The Apple Geniuses say the next step is to replace my Time Capsule, which I will do after backing up its backups, but it seems that there is a problem between iOS 4.2.1 and the new (7.5.2 Time Capsule) software. I'm guessing, since I can sometimes connect but then lose connection, that this is some kind of WAP2 problem, but all my other devices work just fine. I do not want to run a non-protected network, or a network protected with WEP or WAP, since they are older and less secure protocols.

Thanks in advance.

MBP (late 2008); MBA (original); Mac mini (late 2009) running Win 7 w/BootCamp, Mac OS X (10.6.4), Displays: Dell 30", Apple 24" LED Cinema; iPhone 3GS/32; TV; TimeCapsule 1 TB

Posted on Jan 3, 2011 10:48 AM

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Posted on Jan 3, 2011 11:44 AM

I have a Time Capsule dual band which I purchased and have been using before the iPhone 4 arrived on the release date. Since the iPhone 4 supports "N" on 2.4 GHz only, my dual band is set up as 802.11a/n (5GHz) and 802.11b/g/n (2.4 GHz) with my iPhone 4 connected to my 2.4 GHz "N" network, and my MBP connected to my 5 GHz "N" network. I'm using WPA2 Personal for the network encryption and I'm using an 8 character passcode.

Can you connect your iPad to either network - your 5 GHz or 2.4 GHz network? If so, the only difference with the iPad's wireless card is it doesn't require connecting to a 2.4 GHz "N" network as with the iPhone 4, so this does not lend itself to there being a problem with your Time Capsule - not unless your iPad can't connect or maintain a connection to the 2.4 GHz "N" network as well.
62 replies

Mar 23, 2011 7:06 AM in response to Linda Custer

I had this problem for the past 4 days and was able to fix it. I knew it was my Time Capsule because my iPhone could connect to other wireless networks (I have a second wireless network in the back of my unit that is not a Time Capsule). What I did was in airport utility I reset the time capsule back to factory default settings and set it up from the beginning as if it was a brand new device. I can't remember how I did this, but there was some point where it asked me if I wanted to do this, and I hit yes. I am sure that I had adjusted the TC settings at some point and toggled something that an iPhone cannot connect to. My wife's original iPhone (edge) and my iPhone 4 both could not connect, and now they both can.

Jun 13, 2011 5:54 PM in response to Linda Custer

@Linda


I was having the exact same issues you have described. After trying virutally every combination of setting that would appear to be causing the issue, I turned off the "Allow this network to be extended" option and restarted the AEBS (I am using the latest generation Airport Extreme rather than a Time Capsure).


Once I restarted, the iPhones (yes, more than one in this case) attached to the AEBS wireless network and are operating fine.


I hope you have found a solution to your problem.

Nov 4, 2011 12:25 PM in response to Linda Custer

Hi Linda (and everybody following this thread)

Months and months later I read this thread and it's like watching a movie!

I got the same problem with Linda (and the others). The thing is I got my 2TB TC (4th gen) only yesterday.

iPad connects

iMac connects

iPhone 3GS unable to join network

Iphone 4 unable to join network.


I've been googling around and it's only a handful of people having this exact "Linda" issue. Either TC has not sold more than a handful of units or I am with the few doomed ones!

Tested iPhones are on ios5.

Will go one testing on Monday with all the info I read in this thread and post again.

Nov 9, 2011 12:41 PM in response to simastu

WoW Simastu


Just tried your setting and they worked for me 🙂


I got an instant connection after days of failure's I won't relax to soon will give it a few days just to see if it sticks


Off to see if all my other Mac' are still on line as they were not affected (Macbook iPad Apple Tv)


So printed out your setting so I can change them back if I get any problems


Will report back in a few days


But thanks again 😎

Nov 17, 2011 1:08 AM in response to Linda Custer

got in the studio this morning, made myself breakfast and woke the pad up to see some morning news. then i got the phone to check something and saw the connection sign on the task bar!!!!

unbelievable as it may sound all my idevices are connected proprerly to my TC!!!!

here is what i did last night before leaving the studio.

ON the iPhone:

ip address > Static (write your details in fields - where it says search domains i put the second DNS value that the provider gives)

HTTP Proxy > off

Last night when i changed the settings there was no data tranfere but this morning it just worked. Maybe turning the Mac off or...i dont really know to be honest.

I hope the connection sticks (if not i will probably post my frastration again...

I also hope to help someone with these simple settings above., Oh, other than the iphone settings, the TC is set as Linda and the Guru guy had it and i run the latest firmware on everything.

fingers crossed!😉

Unable to connect iPhone 4 properly to Time Capsule

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