Q: Am I the only one having ios 6 ipad 3 wi-fi issues

Same issue, just adding to the comments so this gets noticed!  iPhone connects for a moment to Wifi then goes to the apple page stating the page I was looking for cannot be found.  Fix please!!!

The problem is with my iPhone connecting. Not occurring on the iPad. Same WiFi router an Internet connection. The iPhone correctly recognizes the network, logs in, and then immediately goes into 3G mode and sends me to a "missing" page on the Apple site. I've gone all of the routes...reboot the phone, turn WiFi off for 30 seconds and then back on, airplane mode, and even the Forget this Network route. Same problem. Hopes this triggers a light bulb for someone. Pretty major bug though.

Same problem...iPad 2...cant connect to Linksys WRT300N v1 router.

brings up "Log in" style window redirected to Apple.com with a 404 error.  Once you leave the log in style window, it disconnects from WiFi.

Same here:

iPad 2, AT&T gsm connection works.  Everything worked pre update to 6.

Have tried 2 Cisco e series wireless routers, a wrt54 and a 2wire(fios).  No luck - keeps popping an apple page as though I needed to authenticate on a public wifi network.

Thanks iloveruru, it worked for me!

I have the New iPad running IOS 6 and the wifi isn't working. It was working after the update for about 10-15 minutes. I turned it off, then I came back to it after about 15 minutes and turned the wifi on. It says that it is connected, then I get the Apple Log in page. When it loads it says that the page could not be found. My wifi router is about a 5 year old Linksys router. The network is unsecured because I live on a farm. It is on channel 6. My iPad shows that it has 3 bars where the network name is. All of my other wireless devices are connected. MacBook Air, Toshiba Sattelite, iMac, and an iPad 1.

Blocking apple.com at the router level has fixed it for me as well.

they fixed it, now see a screen that says success

It worked for me iloveruru!  Thanks!

iloveruru

Below fixed the problem (Source: https://discussions.apple.com/thread/4310121?start=75&tstart=0)

FIX:

Settings > Wi-Fi > (Network...) > "Blue Circle Arrow"

Scroll down to the bottom of the screen and set:

HTTP Proxy to Auto

I am having the same problem also. I just updated my ipad3 to IOS6 and it wont stay connected to my wifi. It shows my wifi is there, and will access it but wont stay connected for more than 30 seconds. The problem is not with my router or connection because my PC is working fine and im currently downloading IOS6 for my iphone4 as i type. This is very frustrating. im gonna try to restore my ipad and hope that works

I just went into my wifi and turned ON ask to join networks, instead of joining automatcially. Now I'm happily surfing the internet on iOS 6 over wifi.

Ok this worked for me I disabled my security all together tried to log on again failed than added security again now works

Same here, never any trouble from router, Linksys WRT54GS

Everything is fine, up untill, I get a new screen with apple.com -page not found and the apple site says hmm, the page you're looking for can't be found.

Try to Turn off wifi and turn it on again.  And then apply the fix. It worked on my iPad2. 

I suspect the phone or pad thinks our routers are mobile hot spot. Connects ok and then tries to load the mobile hotspot web page. The welcome to xxx page you get in hotel wireless connection for example but as there not hotspots and don't have a login page set up we get the 404 page and get kick back out of the connection