Iphone 5 unable to connect wifi

I bought unlocked iphone 5 last Nov.. WIFI connection works well, and updated to ios 6.02. after two month, iphone 5 can't connect password-protected wifi, starbucks and macdonald's wifi. Sometime show wifi connected, but internet doesn't work. I tried reset iphone5, but useless
Meanwhile, iphone 4, blackberry and android connect wifi very well under same wifi environment.

I had the same issue and usually a reset of all the network settings on iphone did the trick.
this method did not work with my iphone 5 . i did something in router settings that seemed to change things a lot, for the better.
the wifi channel usually the routers use is channel 11, so i changed mine to channel 1. this solved my issues and the iphone connected just fine to the network, without restarting the iphone or resetting any settings or switching off and back on the wifi.
i am on 6.1.3 iOS

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Noooo! Actually I too had d same prob wit my iPhone 4S. When I connect to my wifi network it won't get connected or it wil be grey scaled! I took it to d istore and since I had warranty they replaced my IPhone. It iPad charger has high volt than ur iPhone charger so when u connect wit it, there is a chance where large amount of current passes thru ur iPhone. So for sure it wil damage ur motherboard and its parts! Many said that iOS 6 or 6.0.1 or 6.1 was d reason for tis wifi prob! But apple never made its mistake wit it's software. If and only if u hav hardware prob u wil hav these sort of wifi prob Bluetooth prob! So best way s to replace ur iPhone!

Hi ! I am unable to connect wifi via iph4s :(

hi !
I am unable to connect wifi via iph4s.. my iph4s wifi tab is greyout. wifi disabled, please tell the solutions as soon as possible ...
thanks

A simple search would have easily revealed: http://support.apple.com/kb/ts1559

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hi !
I am unable to connect wifi via iph4s.. my iph4s wifi tab is greyout. wifi disabled, please tell the solutions as soon as possible ...
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Use this article: iOS: Wi-Fi settings grayed out or dim - Support - Apple
Follow all of the troubleshooting steps. You can even try restoring the device as new: iOS: How to back up your data and set up your device as a new device
If the wi-fi remains greyed out, your device needs service.
If within warranty, it should be free.
If not, it will probably cost $199 USD + tax.

I am unable to connect wifi

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Some things to try first:
1. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
2. Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
3. Change the channel on your wireless router (Auto or Channel 6 is best). Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
4. Go into your router security settings and change from WEP to WPA with AES.
5. Renew IP Address: (especially if you are droping internet connection)
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    •    Tap on Wi-Fi
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~~~~~~~~~~~~~~~~~~~~~~~~~
iOS 6 Wifi Problems/Fixes
Fix For iOS 6 WiFi Problems?
http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
iOS 6 iPad 3 wi-fi "connection fix" for netgear router
http://www.youtube.com/watch?v=XsWS4ha-dn0
Apple's iOS 6 Wi-Fi problems
http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
~~~~~~~~~~~~~~~~~~~~~~~
Look at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
WiFi Connecting/Troubleshooting http://www.apple.com/support/ipad/wifi/
How to Fix: My iPad Won't Connect to WiFi
http://ipad.about.com/od/iPad_Troubleshooting/ss/How-To-Fix-My-Ipad-Wont-Connect -To-Wi-Fi.htm
iOS: Connecting to the Internet http://support.apple.com/kb/HT1695
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
Fix Slow WiFi Issue https://discussions.apple.com/thread/2398063?start=60&tstart=0
How To Fix iPhone, iPad, iPod Touch Wi-Fi Connectivity Issue http://tinyurl.com/7nvxbmz
Unable to Connect After iOS Update - saw this solution on another post.
https://discussions.apple.com/thread/4010130
Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom
PS You have the wrong iOS in your profile. The iPad 3 can only run iOS 6.0.1. iOS 6.0.2 is only for the iPad mini and iPhone 5.

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have you tried all the help in this apple support document?
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Hi,
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I have a Blackberry Curve 9360 with OS 7 Bundle version 1555 after upgrading to OS 7 bundle version 2355 am unable to connect to wifi. am able to connect to my house wifi but not my office wifi dont understand what the problem is.
When i switch on my wifi it connect to my wifi completely and withing 3-4 seconds gets disconnected and says " Failed to Assoiciate to the Wireless Network"
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Hello Sagar98,
Welcome to the community..
You may try by deleting earlier added profile and readding it & more over, If you are able to connect your Blackberry with your Home Wi-Fi system, then seems no issue with Device Wi-Fi.
Wi-Fi access point configuration is of two type:
1.) Where in first case, you can search Wi-Fi freely.
2.) In second case, the Device MAC added in access point can search Wi-Fi access point, rest wouldn't even to search or connect to.
So, please consult with your IT team for this, they would definatley help you in this.
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The problem I have is that you have had expert advice from Apple and your ISP, I cannot match that.
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Thank you for visiting Apple Support Communities.
Here is an article that I would recommend going through when experiencing issues with Wi-Fi.
iOS: Troubleshooting Wi-Fi networks and connections
http://support.apple.com/kb/ts1398
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Unable to connect wifi via netctl - Unregistered Authentication Agent

I have a previous post int the Newbie Corner that went unanswered, so I figured I'd try again here now that I have some new information. The post is here...
https://bbs.archlinux.org/viewtopic.php?id=197031
And here's a copy of that post so you don't have to open it in a new tab.
ORIGINAL POST:
I have continually been having issues with netctl failing to start an automatic profile for awhile now, but I have been able to manually bring up my connection once my system is up and running. Today I am running into the issue where netctl will outright fail to connect during a manual attempt. When viewing journalctl -xe the error I receive is:
WPA association/authentication failed for interface 'wlan0'
Failed to bring the network up for profile
I noticed that there is a 'fix' for this issue on the Arch Wiki which simply states to bring wlan0 down with ip link, then to start the profile with netctl again. I went ahead and gave that fix a try and got a new error.
Unregistered Authentication Agent for unix-process:1324:44567
The error goes on to provide a path to .../PolicyKit1/AuthenticationAgent,.
I have tried using NetworkManager as well, but I'd prefer not to use it as I seem to have more problems with it over netctl, and that is why I currently have it disabled. Any advice on how to proceed would be appreciated. Also, I was connected to my home wifi last night without a problem, and I have tested the wifi connection with my phone, which authenticates and connects without a problem.
EDIT:
I did a bit more digging and found some startup errors issues via dmesg with wlan0.
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: authenticate with 00:24:b2:71:b8:27
wlan0: direct probe to 00:24:b2:71:b8:27 (try 1/3)
wlan0: direct probe to 00:24:b2:71:b8:27 (try 2/3)
wlan0: direct probe to 00:24:b2:71:b8:27 (try 3/3)
wlan0: authentication with 00:24:b2:71:b8:27 timed out
The last 5 lines of this error repeats about 7 times before stopping. I use a broadcom card and my 43xx driver loads without a problem, I've been using it for awhile now on various distros.
b43-phy0: Broadcom 4311 WLAN found (core revision 10)
EDIT:
Well after doing some research, I found this existing bug.
https://bugs.archlinux.org/task/44821
Involving wifi not working under kernel 4.0.1. I noticed a Broadcom card listed by one of the users who was having the same problem, so at this point I'm probably going to wait until I get home to test my laptop on my home wifi again, then if I run into problems I'll downgrade my kernel and see how things go.
NEW POST:
So after all of that I tried my laptop at home again, and netctl-auto connected flawlessly to my wifi at home, which has led me to believe that the problem has to do with the message...
polkitd[1087]: Unregistered Authentication Agent for unix-process:2582:96758
I had previously noted that I would downgrade my kernel, but at this point I'd hate to do that considering netctl-auto is working.
I have also tried connecting via wifi-menu, and when I try that I get the message
Interface 'wlan0' is controlled by netctl-auto
After which authentication fails. I have stopped netctl-auto via systemctl using systemctl stop [email protected] and tried again. I end up receiving the message error message from systemctl that the job failed, and viewing journalctl -xe shows the recurring Unregistered Authentication Agent from polkitd.
Any help would be appreciated.
EDIT:
The issue continues. I have enabled the netctl profile I am currently working in netctl-auto with netctl enable profile, and that has not allowed the profile to automatically start up as it would with my home wireless connection. Something I have been noticing is that upon boot, without attempting to connect with netctl, is that wlan0 is not up.
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
I have manually brought it up and immediately receive a failed message from systemd regarding my profile in netctl. If I do not manually bring it up with ip link set dev wlan0 up, then when I try to connect with netctl start profile, netctl will not bring wlan0 up and it will leave it in it's previous state.
The odd thing is, even with wlan0 in a down state, systemd is giving me the error message...
WPA association/authentication failed for interface 'wlan0'
Which is odd because netctl shouldn't be able to pass authentication is wlan0 is still down.
I've been at this for 2 days now and am no closer to fixing this than I was yesterday. I could really use some assistance. At this point I believe I may just downgrade my kernel and hope this fixes the issue, if not then I'm silently hoping my laptop won't connect to my home wifi when I get home so I can diagnose this problem via ethernet.
EDIT:
Well here's something new. When viewing why netctl-auto fails on startup via systemctl status [email protected] I am getting the reason of
Could not create the configuration file for interface wlan0
At least now I have a bit more to work with.
Last edited by barefly (2015-05-06 22:30:39)

Use this article: iOS: Wi-Fi settings grayed out or dim - Support - Apple
Follow all of the troubleshooting steps. You can even try restoring the device as new: iOS: How to back up your data and set up your device as a new device
If the wi-fi remains greyed out, your device needs service.
If within warranty, it should be free.
If not, it will probably cost $199 USD + tax.

I am unable to connect wifi at home to for my ipad mini

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Unable to connect wifi nokia xpressmusic 5800.

Up until a few days ago I was able to browse the net with native browser and Opera mobile and use Fring, facebook and various other apps via wifi to my router. Now my phone says I'm connected but the browsers and apps won't connect. I have made sure my wifi is priority 1 and deleted and then added the wifi connection again but still no joy. Can someone advise me of a fix for this or is the only way to back up then reinstall the firm ware?
Solved!
Go to Solution.

Thanks for your suggestions Jampe. I had tried them before and several other fixes which didn't work. However I have just tried the last suggestion in the thread which you posted the link to and it seems to have worked so far... It has survived switching the phone off. The next test will be when I switch the router off at night and see if it connects again tomorrow. But so far so good. If it still works tomorrow I shall mark the thread as 'solved'. This was the method I used...
"Re: Nokia N8 WLAN "Invalid Server Name" Error
Options
05-Sep-2011 04:21 PM
Guys don't know if this is too simple but, I had same problem with new N8. It worked fine for three or four weeks on my WLAN then suddenly I started getting the "Invalid Server Name" error. Couldn't understand what had happened then realised that I had unplugged the router (had to use a different power outlet) whilst the N8 was connected to my WLAN. I have now solved my issue as follows, I deleted my WLAN access point from the phone, turned the phone off, then switched the router off (and removed power supply transformer from mains outlet) for five minutes. I then switched the router back on and gave it time to establish its network connections, after that I switched the phone back on, searched for WLAN, entered WAP/WEP password as required and the error messages have now ceased. Hope this works for other people too.
Mikey_G
New Member
Mikey_G
Posts: 2
1
Re: Nokia N8 WLAN "Invalid Server Name" Error
Options
04-Dec-2010 03:58 PM
This works!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! "

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