Prior to the upgrade I was able to connect to my Home Wi-Fi which is secured with WPA2-PSK and AES encryption plus password; however, last week I had my Color Nook upgraded from 1.1 to 1.2 in the store and now I cannot connect to the Wi-Fi at home. All it does is go to trying to obtain IP address to disabled. I called CS and they were not able to help and had me call my ISP which I did eventhough it did not make sense. Since I am the admin to my router - I even took off the security and left it open and still was not able to connect to the Wi-Fi. I checked my other wireless devices such as my laptop and it works just fine.
Has any one else experienced this problem since the 1.2 upgrade?
I bought my NC and immediately updated to 1.2.0. Like you, I use WPA2 with my (D-Link DIR-655) router and I'm able to connect just fine. What happens if you try to connect to a free wifi source other than your router? If you can't connect to any router, there's an issue with your NC. If you can connect elsewhere, then there must be some issue with your router or its config. Good luck.
To Summerise what to try if wifi is not working:
1. reboot your Nookcolor.
2. reboot your home wifi router and network.
then reboot your Nookcoor.
3. verify that your wifi is working with another wifi device, i.e. laptop, or gamebox, etc.
4. If you have SSID "on" turn it "off" in your wifi router.
Reboot your Nookcolor.
5. Delete (forget) your Wifi connection protocol in Nookcolor, reboot, allow Nookcolor to aquire the different wifi network signals, yours should be among them and then see if you can connect.
6. Reset to factory (this is last resort)
7. Call Tech Support (if you got the Philippines, then ask for USA tech support (it is official B&N policy that they have to transfer you).
8. Still not working, warranty exchange...
Rem. if your home wifi setup was working before the update or prior to any changes to your Nookcolor, and then after the update or any changes, you can't connect to wifi, 99% of the time the problem IS NOT THE WIFI ROUTER. So don't fool with your wifi router, except for SSID on/off.
For those that are getting "not in range", if you ever power on/off wifi watching that screen in your NC, you will notice when the wifi is 1st powered "on" often it will first say "not in range" for your wifi network, and then it will connect and everything is fine. So if that message continues, it is like the NC is stuck in that inital mode, rebooting most of the time will solve that.
Also try moving closer to the wifi router to see if that helps too.
If anyone can suggest refinements to the above or additional valid steps, please suggest so we can give these steps to others seeking help with their wifi.
I am able to connect at the local B&N store, just not from my Wi-Fi at home. I have even done the hard-reset twice now...
I had the same problem after upgrading my Nook. I went to the local Barnes & Noble, where my Nook had no problem connecting. They suggested I call the 800 number. After calling the 800 number, the tech explained that there are some glitches with the upgrade. Certain routers will not connect with the Nook once it is upgraded. Of course, I was lucky enough to have one of those routers. They're working on the problem, but had no idea when they will have a solution.
I don't have the problem so I have no way to test whether I am right or wrong but i've previously had wifi problems with some embedded devices and dlink (and other non-linksys) routers and it was related to the short/long preamble setting.
Can someone who does have wifi connection problems after the upgrade try changing the preamble setting on their router and see if that helps?
I had the same problem and B&N tech support told me that I needed to get a new router. Granted my router is an older model but it worked fine before the upgrade. I tried the rebooting router and NC, changing the security settings on the router and all the other things that were suggested to no avail. After further investigation I finally did the 8-reboot sequences and set it back to the 1.0.1 version and it works fine with my router now. Just don't have all the apps and perks of the newer version but can connect to the internet now. I have included the link to the instructions to do this here http://nookdevs.com/Flash_back_to_clean_stock_ROM. This worked for me maybe it will work for others.
My router is a MN700 and the last firmware update for it was in 2006.