It is definitely a problem with the settings on the nook as i have other things in the house connected to my wireless and it works great. Nook battery power.

Samsung Nook App Software Update
Unable to connect to nook service. I am unable to connect on my nook. If the conditions allow it is recommended to connect to the wireless network at the nearest barnes noble retail store. Here are some possible solutions. That may fix a problem that has cropped. Power on your nook device and connect it to your computer via usb cable. From your computer locate your device below and click the download link for the required software update file.
Turn off the power to the router for ten seconds or so and then restore power. The issue is most likely router or internet service provider related. For the last week or so my nook it has been saying unable to connect to nook services please try again later. Once connected open my computer windows. Trouble connecting to nook. Check with the network administrator to see if theres a blacklist of blocked devices or a.
If the nook successfully connects to the in store wireless network and has internet connectivity the issue is not with the nook. I show that my w fi is connected. It says service unavailable. Then try and connecton the home menu tap wi fi then tap on when your home network appears in the list tap the network and then tap connect. My nook tablet says that it is unable to connect to wifi. I have restarted my samsung nook several times and so last i then put in a new micro sd c read more.
Having trouble connecting to your nook. Please try again later. Turn off your nook tablet and then turn it back on. If you still are not able to connect with the nook colorplease let me know if you have any other wireless devices currently connected to the router that are able to access internet. I have a samsung nook and whenever i try to connect thru helloi have a samsung nook and whenever i try to connect thru wifi its says you are unable to connect to nook service. Und read more.
Not able to buy answered by a verified network technician.