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)
• Launch Settings app
• Tap on Wi-Fi
• Tap on the blue arrow of the Wi-Fi network that you connect to from the list
• In the window that opens, tap on the Renew Lease button
iOS 6 Wifi Problems/Fixes
Fix For iOS 6 WiFi Problems?
Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
iOS 6 iPad 3 wi-fi "connection fix" for netgear router
Apple's iOS 6 Wi-Fi problems
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
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
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.
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.
My "router" is a WiFi extender, the TRENDnet TEW-637AP 2.0R running latest (old, from 2010) 126.96.36.199 firmware. Dunno why this should be an issue--it works fine with the iPad 1 and our other iGizmos (two iPhones and an iPod Touch).
No security in use--I'm in SERIOUS COUNTRY in Texas! I am going to try setting our Minis with fixed IP addresses; that feels like the best next thing to try, thanks.
Well I changed my Mini's IP to a Static and last night while I was cross-checking the settings on my new Mini against my iPhone 4S settings, the WiFi for BOTH of these gizmos turned-off, as if there is indeed a "time-out the WiFi if it's not being used".
So I guess it's not a Mini issue specifically and I'll (try to) wade-thru the myriad of links you've given here...
These suggestions, and all the links, have the feel of "try everything and hope something works". I've reset my network settings and that hasn't helped.
Apparently Apple changed something with iOS6 (I don't have this problem with my iPad1 which is locked-down to iOS5) maybe to reduce power consumption or something.
Guess I'll have to live with it, and just re-connect when the WiFi goes away...
"These suggestions, and all the links, have the feel of "try everything and hope something works". I've reset my network settings and that hasn't helped"
You responded to Seremare solution with reference to Texas Man. Yes Texas Man does have that kind of standardizes template, and yes I find it useless, while he is very effective with people who can work
on their own, without guidance. However some of us somehow aware of some changes that came with ios 6. My advise to make two pointed changes was based on that info and experience. Up to you to follow or not. I still would not type anything now if didn't feel that Seremore genuinely tried to help you
and your comment to him was not deserved. The only way you benefit is by not ignoring what has been said.
Wow, thin skins around here, huh!!!!?!!!
There's no "multi-quote" capability, so I clicked Reply on the last msg, which happened to be Seremare. Next time I will reply to myself.
As for your suggestions, I already have an original SSID, and have tried "Connect automatically" both ways to no improvement. The WiFi connection just goes-away for no apparent reason and I've noticed it with more than one app.
If you tried my suggestions, it means that ios 6 is not considering your network secure enough to keep connected to. At that point you can a. forget about it. b. Spend 15 bucks for the new router, that may not have 2010 firmware. c. you can also put security on your router and see if then ios feels more secure.
New iPad mini for Christmas, wifi would drop out after sleep or turning off. Tried most of Texas Mac Man's suggestions with no resolution. Updated to iOS 6.0.2, and still dropping. What finally worked was using the OTHER selection in the Choose A Network drop down menu under Settings. Type in existing name of the wifi network, existing password, and join. On return from sleep it takes a couple of seconds but rejoins network.
My issue has been that I can be using an app and the WiFi simply goes-away and then needs to be re-connected (and not your problem of "after sleep or turning off"). In my case it seems 6.0.2 does not fix the issue, but AFAICT it may be an issue with particular app(s)--I do at least now have a pop-up that says "reconnect to your WiFi signal cuz it's been lost" (paraphrasing) so at least I know it's happened.