Internet connection for tablet psk rejected

sondancer Posts 1 Registration date Friday February 26, 2016 Status Member Last seen February 26, 2016 - Feb 26, 2016 at 02:17 PM
My Samsung 8 tablet will no longer connect to the internet.
The Wi-Fi signal is very strong.
I have an SSID identification from Bright House.
The PSK from Brighthouse is rejected as invalid. Other Tablets and computers in the house connect immediately using the same psk that I enter to connect my tablet to the internet. Is there some adjustment that needs to be re-set?
How would I do that?