New R Pi install failed to connect msg when selecting network

Brand New NOOBS install for R Pi Model B 16Gb SD card. The Startup screen for selecting Wi-Fi network found my local wireless network. Got a failed to connect message after inputting my pass phrase, so I had to skip. Everything else seems to be fine. without the internet connection, I cannot check for updates or access any help files. Spent lots of time in RPi for Dummies and Linux for dummies. So far unable to get the system to present the 'Select Network' screen again so I can double check my wifi PW. In my previous install on this Pi has working fine connecting to the wireless network......... Jerry