Previous 1 2 3 Next 43 Replies Latest reply: May 12, 2012 6:47 AM by CPTodd
Kronkite Level 1 Level 1 (0 points)

Just got my iPhone 4S yesterday. WiFi connection kept dropping. Woke up this morning and was dismayed to get a message from AT&T that I was nearing my 3G data cap. I think my iPhone was downloading stuff from iCloud (photostream) and syncing apps over 3G and not WiFi.


I reset my router and problem persists. This is in a location in the house where the iPhone 4S is showing a few rings of WiFi signal and my old iPhone 3G used to work fine with WiFi. My mac also gets a full wifi connection at this location.


I have a Time Capsule dual band (802.11a/b/g/n) for my router. Am using WPA security and otherwise normal configuration.


Anyone else seeing their WiFi drop in and out on the 4S?





  • prattwebsupport Level 1 Level 1 (0 points)

    Yes. I'm seeing Wifi drop in and out not only on an AT&T 4S but also a new AT&T iPhone 4 (the new 8 GB model). Reading between the lines, though, I might be seeing a slightly different issue than you. Both phones would say they were connected to the Wifi but would not be able to connect to the internet. Turning off the Wifi and back on again would result in the same problem; trying to switch to a new network would result in a spinning wheel next to the network name, as if the phone was trying to connect but couldn't. Other devices on the Wifi network had no problem connecting to the network, and the phones generally didn't seem to have the issue at the same time.

  • Closer007 Level 1 Level 1 (0 points)

    Glad to know it wasn't just me.  This is happening to me too.  My 3GS used to get great reception throughout my house but now my new 4S drops the WiFi all the time and goes to 3G...hope they fix this

  • NewUser1411 Level 1 Level 1 (0 points)

    Mine wifi signal is also dropping in and out or even down to 3G as well.

    One more thing i found out that when my palm covers the top left corner of the iphone 4s the wifi signal dramatically drop and lost the signal.


    Do you guys thing this is the device problem ?

  • rockmyplimsoul Level 5 Level 5 (6,390 points)

    Just for kicks, see if wi-fi connectivity is more reliable by either (a) putting iPhone into Airplane mode and turn wi-fi back on, or (b) turn Bluetooth OFF (with or without Airplane mode enabled).

  • robertofromdiamond bar Level 1 Level 1 (0 points)

    I've got a 4s as well. Had a 4 before. I've noticed on this new 4s that my wifi would randomly lose it's connection. Really annoying. I'd have 2 wifi bars and suddenly it would drop even though the position of the phone or the way I hold it wouldn't change and it would go back to using my cellular data. My MacBook at the same location gets full bars. I'm only one room away from the router with a bathroom in between the rooms. I understand if I'm at the edge of the wifi range that it would drop but I'm only 1 room away!

  • robertofromdiamond bar Level 1 Level 1 (0 points)

    Wow that's right. When you cover the top left corner wifi totally starts degrading. Good catch. You know I wonder if these drop problems would be dramatically reduced with a case. I'm getting a pinlo slice soon for my 4s so should be able to test if it makes a difference.

  • Hana Level 2 Level 2 (165 points)

    I have the same problem with my iPhone 4s.  I've been searching the internet for answers but no concrete fix. Which leaves me believing it's a hardware issue and the phone will have to go back to Apple for replacement. However this only seems to occur at my home network, at work I don't see the problem. My 3gs was fine and never had a problem with either location.  The only change I made between phones was that I left the unlimited data plan for the 200mb/month plan. (I rarely get over 150mb)  So call me skeptical but with the constant loss of Wifi and unintentional augmented use of 3G will send my data through the roof!  Thus I will be charged for going over my limit.  Did anyone else make this change? 

  • robertofromdiamond bar Level 1 Level 1 (0 points)

    Let us know if getting a new phone solves it. I think it might have to do with the antenna switching feature of the 4s.

  • R8754 Level 1 Level 1 (0 points)

    My 4s is behaving the same; inconsistant wifi signal where my 3Gs was perfect in the same places.  Has anybody talked to Apple directly? 


    It is annoying to upgrade 2 levels in phone and downgrade in wifi performance.  Apple built iCloud, now we need to be able to connect reliably.  Apple? 

  • optical4 Level 1 Level 1 (0 points)

    I have two 4s's. Both are dropping the WiFi connection frequently...leads to issues with downloads that require a constant signal. I use a Time Capsule for my router. I have 2 iPad 2s, a MacBook Pro and an iMac that function fine on my WiFi network.

  • robertofromdiamond bar Level 1 Level 1 (0 points)

    I got a pinlo slice case and unfortunately even with the case I am experiencing the wifi dropping.  Even when it is at the full 3 bars of wifi strength, suddenly it would revert to 3G, and then connect to wifi again.  It seems OK when I'm within one room of the wifi router.

  • maczter Level 1 Level 1 (0 points)

    I've been experiencing the same issue with my 4S over the last couple of days, both with the AT&T voice and 3G connection intermittently dropping so that the phone displays "Searching..." and with the WiFi connection refusing to connect, no matter how close I get to the WiFi router I'm attempting to connect to.


    I noticed the voice & 3G connection dropping at least a dozen times both yesterday and today while working and I attempted for over an hour last night to get my phone to connect to my Aiprort Express. The connection profile showed in the Settings app and other devices in my room were connected without issue. I restarted the phone and the Airport Express multiple times without any success. I finally got frustrated and went to bed. When I woke up and woke the phone up, it instantly connected to WiFi.


    Something's definitely janky here. I hope it's just in the software, but I'm not entirely convinced that's the case and may just try swapping out my phone for another 4S if this continues since I've had the voice connection drop to "Searching..." more than once in mid-call already while sitting at my desk, where I usually have at least 4 bars.

  • thope Level 1 Level 1 (0 points)

    This is clearly a hardware issue, swapped two phones with same result. The phone drops connection even when on mains, so it's not a voltage or battery charge issue. my old 32gb iphone 4 or ipad does not exhibit this issue (both on ios5)

  • balathustrius Level 1 Level 1 (0 points)

    Yeah, this is kind of ridiculous. I have an Express call scheduled with Apple for this afternoon, but I'm honestly not expecting much. It will be interesting to see if they even acknowledge that it's not just a tiny issue for one or two people.


    Mayhaps I will go to the Apple store, and have them whip out an iPhone 4 and compare it, as I traded up from an iPhone 4 and it didn't even slightly have this WiFi issue. It had a very decent signal and never dropped back into 3G at all in my it does all the time.


    Sitting my iPhone 4S pretty much right next to my router, I get a max of 5Mbps(!), versus my HP Touchpad in the same spot which ramps right up to around 25 Mbps. Don't even get me started on going farther away from the router...ain't happening.


    Sigh, I might be at the end of my iPhone ownership. This isn't acceptable to me at all.

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