I have problems connecting to Wi-fi with my iPhone since I upgrade to iOS 6

Hi
Did anyone have problems with iPhone wi-fi connection since upgrading to iOS 6? I can't connect to wi-fi network. The option to turn on the wi-fi is grey out. Did anyone know this is a common problem in people using iOS 6? Did Apple is already working in a solution? I'm worry about consuming all my cellular data plan because of this issue. If anyone could help providing some information on these matter I would really appreciated.

Did you already try the troubleshooting mentioned here:
iOS: Wi-Fi or Bluetooth settings grayed out or dim

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TS1398 my ipad and my iphone have weak wifi signal since the upgrade to IOS 6

i have really weak signal in my ipad and iphone since i upgrade to ios 6

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
Additional things to try.
Try this first. 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.
Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
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
Another thing to try - Go into your router security settings and change from WEP to WPA with AES.
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
If none of the above suggestions work, look at this link.
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
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

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Hi guys,
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I installed Sap NW in a machine on the local network with IP 192.168.x.y, and I can connect to it without problems; I can use the portal and implement jobs in Visual Composer.
After installing Sap Developer Studio, I connected it successfully to the NW through the menu "Preferences->SAP j2EE engine" selecting the option "SAP J2EE is installed on remote hosts" and inserting IP address of the machine with NW (192.168.x.y) and port 3900.
Using these parameters the logon works, in fact I can see the tab "J2EE engine".
The problem is that when I try to make the deploy, Web Dynpro asks me the SDM password (that I'm sure I've inserted correctly) but it returns the following error to me:
Deployment aborted
Settings
SDM host : SVR-NW
SDM port : 50118
URL to deploy : file:/C:/DOCUME1/Michele/IMPOST1/Temp/temp59548Welcome.ear
Result
=> deployment aborted : file:/C:/DOCUME1/Michele/IMPOST1/Temp/temp59548Welcome.ear
Aborted: development component 'Welcome'/'local'/'LOKAL'/'0.2010.09.01.07.31.29':
Caught exception while checking the login credentials for SAP J2EE Engine. Check whether the SAP J2EE Engine is up and running.
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Hi Michele,
There were 2 cases I explained, and the second was the one in case your SDM was blocked. Did you try the first one?
Anyways, here is something more that you can try to get it working. In case the SDM password is valid, did you log into the portal as the Administrator? If yes, then you must have been asked to change the password. If you did change the password there, login to the remoteGUI using the Master password (abcd1234) and change the password there also to the same password you use for Administrator on the Portal. Now try again.
In case the above doesnt work, start the configtool.bat from \usr\sap\J2E\JC01\j2ee\configtool and go to secure store. Here define the J2E passwords again (the same new password you gave for the Administrator in the portal), save and restart the server. I think it would work then
Hope that helps you out!
Bye,
Sameer
P.S - the main thing is that the error you got was Authentication failure using the Administrator username. Thats why you have to make sure that the password for the SDM is the same as what you gave for the Administrator login in the portal. So after you login into the remoteGUI, CHANGE the password to what you have for the Administrator(just like the one in the portal).
Message was edited by: Sameer Jagirdar

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     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1049)
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     at Test.main(Test.java:39)
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     ... 18 more

I have worked around this problem by configuring the Java client to trust all certificates and disabling hostname verification. That way I don't need a trust store. I'll just have to remove that code in production. Not ideal since I'd rather have certificate/hostname verification working for testing, but it works at least.
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http://download.oracle.com/javase/6/docs/technotes/tools/windows/keytool.html
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java.io.IOException: HTTPS hostname wrong
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I have problems connecting to Wi-fi with my iPhone since I upgrade to iOS 6

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