Authentication problem with my Android tablet

Solution
Authentication error is often caused by not typing the wireless key exactly as it has been saved in the router or modem's setup.

The key is "case-sensitive". That means each letter must match the saved key exactly (capital or non-capital).

Also make sure you don't type the letter 'O' when it should be the number '0'.
Authentication error is often caused by not typing the wireless key exactly as it has been saved in the router or modem's setup.

The key is "case-sensitive". That means each letter must match the saved key exactly (capital or non-capital).

Also make sure you don't type the letter 'O' when it should be the number '0'.
 
Solution