iPhone 4 cannot connect to home Wi-Fi

Hi,

I am having the same issue with my iPhone4. It started happening when I replaced my Linksys Router to a Linksys E4200. It is so strange - my iMac, laptop PC, and iPad connect to my home network wirelessly with no issues.

My iPhone4 refuses to connect. I tried changing the channels in the router configuration to the highest level and rebooting the router. This did help by at least making my network visible on my iPhone, but when I enter my password I get the message, "Unable to join the network".

I am using iPhone version 5.0.1.

I have tried the process you recommended to "forget my network" on the iPhone, but that pulls up a page focused on IP address and HTTP Proxy

Any ideas?

Hi - this issue was driving me nuts and grateful for the help in getting it sorted. Got new iphone4s my iPad and other comp no prob connecting to home wifi. My iPhone connected to work wifi no prob but not home.

Same issues as read in a lot of the posts - a couple of people suggested trying the forget this network approach. This worked for me thanks

My issue is similar, but different. I recently upgraded to Snow Leopard, and since then I can only get my AirPort to sen the signal for computer-to-computer sharing, not the arrow sign for network sharing. So, the 2 iPhone 4Ss in the house are not able to use AirPort any longer. I have tried all suggestions and have no idea why this is happening. Especially since I never set up a computer-to-computer network since I only have one computer in the house. Can't figure out how to turn it off! Any suggestions would be much appreciated.

Thanks!

Apple friends,

Lately I've been having these wi-fi conneciton issues with my iPhone 4. I tried most of the other phone setting fixes listed above without success. (Didn't want to mess with my router until I had to.) Finally I went to Settings>Wi-Fi>Choose a Network>Other> and entered the name of my home network (even though it was already visible in the "Choose a Network" list). Then I selected >Security and chose >WEP (because that's the kind my router uses) and entered my network password. Bingo! My iPhone instantly connected to my home network and all seems to be well. Just as an FYI, this did not create a second listing for my home network, so there was nothting to "forget" or delete, etc.

Good luck,

George

Hello all,

I had the same problem, wifi not working on my iphone, and ipod touch 1st gen, but working on my home computer and ipad. wifi switched to 3g and never get back on wifi. try all the methods to solve and nothing work except below:

Turn off home router or unplug it and turn it back on, iphone 4 and ipod touch wifi works again!

Hope it helps!

I've found a couple of issues can effect iPhone4 wifi connectivity.

First up, your router MUST NOT be set to a wireless mode of 802.11n only. Make sure it's set to 802.11n, 802.11g & 802.11b

All routers are different so you'll have to refer to your manufacturers manual. Most use a web browser to access the settings and in the case of my Belkin N1 MIMO, I type in 192.168.2.1 and hit enter.

Your router password needs to be entered to make any changes. The password unless you've changed it already, will be the default for your make of router. Google will usually help you find it :-)

Secondly, with regards to your wifi security, iPhone's do not seem to "like" an Encryption Technique other than AES.

In my router's wireless security settings, I found the most reliable settings for connecting my iPhone4 is to have the following:

Security Mode: WPA-PSK

Authentication: WPA-PSK+WPA2-PSK

Encryption Technique: AES

For some reason, (I am not a particulary technical person) my iPhone would not connect to my wifi network when using TKIP or TKIP+AES as the Encryption Technique in my router.

Also, in spite of my MacBookPro and everything else (wifi extender, airport express etc) connecting to my wifi network just fine, my iPhone would not connect when my router was set to 802.11n only.

Hopefully the above might save a few people the days of frustration I went through.... 🙂

I meant to reply to your message but as I've only been on here twice before, I somehow hit the wrong button...

I hope my suggestions elsewhere on this page might help you resolve your connectivity issues :-)

If they were working OK, then stopped working after 4 weeks, it suggests that something has changed.

Have you checked to see if any neighbours are using the same channel as you on their wifi router? It's possible someone near you has bought a new router which is affecting yours. Or do you have a cordless phone anywhere near your Airport Extreme?

Have you tried unplugging each Airport Express to see if you can connect to the base station?

I checked my channel number to be sure I was well away from all the ohter networks I can pick up.

If it's the same or very close, (7&8 for example) this can cause drop-outs and connection problems.

One of my neighbours is on channel 11, another is on channel 1, plus a very distant one also on 11, so I have opted for channel 8.

Agree with Interceptor III re Router Channel. I was convinced my Iphone had died as the WIFI just stopped working. To cut a very long trouble shooting exercise short it turned out that a new WIFI router had appeared in the neighbourhood and it was somehow blocking my signal. A change of Router channel fixed the problem. I* found this tool useful to see what was happening in the neighbourhood.

http://tools.meraki.com/stumbler#q=

There's actually no need to download any special tools, plus the tool above, might not work with your browser without installing Java or something. (It won't work on mine for example).

To check for which channels are in use in your neighbourhood, on a Mac, simply press the "option" key at the same time as you click on the wifi indicator in the top right of your screen. Your own details will then show up and if you move the mouse pointer over any other wireless network in range, a pop-up window will show you the details of that network, including channel number.

On Windows Vista or 7, it's much more complicated and you have to be a little more brave!

Click on Start button and enter the following without the ".

In the search thing, type "cmd" and hit enter.

A DOS style window opens. Type "winver" and hit enter if you want to see your version of windows.

Then type "netsh" and hit enter.

Next type "wlan" and hit enter.

Finally, type "show all" and hit enter.

Towards the bottom of the page will be a list of all available wireless networks, including their channel numbers.

Choose a channel for your own network that's as far away as possible from all of them.

If there are no free channels (very unusual), choose one that's perhaps showing as a very weak signal, so as to minimise any interference.

I finally got the enterprise wifi at my work to function by putting the iphone in airplane mode, then turning on only the wifi (leaving the cellular radio off), at which point I got a message about a certificate and then the wifi started working (although it *did* drop after a bit, and I had to repeat the procedure). Apple needs to fix this bug!!!

I would recommend unplugging the wifi router and re - connecting it. I did it and all my iOS devices started to connect to Wifi again.

Manually fidgeting with devices are sometimes more helpful than digitally doing it...

Hi everyone! So I was having the same problems and couldn't figure it out. I have the answer...oh maybe it just worked for me. Go to your Settings --->General--->Reset--->and choose, Reset Network Settings. This will clear all of the past tries to connect to Wifi. Once you reset, go back into your Wifi options and will be able to see your router. Once you choose it, it will ask for your security code and everything should connect fine. If this does not work for you, I am truely sorry. It worked great from me just as it did before I upgraded. Good luck!

PS: I found this info on the Apple iPhone Support page. There are other ideas of how to fix the problem if this doesn't work.

So I think it was around page 6 that I found the answer to my connection problems...Enter the Security key when it asks for your password. All works for me now. I forgot who posted the solution but thanks.

I need to add myself to the long list of people without WiFi on my iPhone4s.

I have BT Infinity and amongst the devices successfully connected via WiFi are an iPad and an existing iPhone4s plus various Laptops and a couple of other mobile phones.

The iPhone 4s that came into the house last week as a result of an upgraded phone will not connect to the WiFi - I have been through T-Mobile and Apple who after trying walking through resetting everything determined the phone should be replaced. The tecnician at the Apple Shop was at first not keen but due to a drop out in the shop he agreed to replace the phone. (it was just 3 days old and 2 were waiting for an appointment).

Anyways, new phone in hand and still no connection. I have tried as many options as I can find that match my situation including restarting the router, modifying the Channel to each possibility twice 1-11 channels and even changing the security from wpa (and wpa2) to wep but all to no avail. I have been through the forgetting network as well but in the end always end up with a spinning disk and never a connection. Sometimes I can see an IP Address attcahed and sometimes not.

Obvioulsy I am very agitated with this seemingly simple task not being able to get undertaken by what I believed was the lastest and greatest phone. And especially as we have another iPhone4s that connects happpily every time!

Any pointers would be appreciated.