If you are looking for information on how to setup your WiFi password please search for that information as this pertains only to the character count and rules for your WiFi password
-A minimum of 8 alpha-numeric characters must be used if you enable a password
- If you would like a open network without a password, then delete the previous password and tab or click out of the cell. Do not highlight and press spacebar to remove the text as this would indicate your password is one space and fails to meet the minimum requirements set above
Failure to set your password within the above expectations could cause a software issue preventing WiFi access at all. Corrective action would be to connect using a LAN cable and do a factory reset.