Cannot connect my Galaxy Ace to my Google account I have 'Market' and every time I attempt to log into it using my Google account it says that it 'Can't establish a reliable data connection to the server.'

Any idea what could be done to get it working?
Setting the correct System date and time.

It turns out authentication requires establishing a secure connection with Google’s server. The SSL certificate contains a expiration date which would be compared against the system date of the Android system. If the system date is too far in the past or in the future, the validation would be failed, thus the connection cannot be established. This is a security measures of the HTTPS connection, so check your system date next time encountering such strange error message.  

OR  

If that above fix is not working for you then you can try out ‘YouTube Connection Trick’ to rectify this problem.
Follow the below steps –


Add YouTube app and login into your Gmail account.  
Go through the Gmail asp and add account if needed.  
Sign in to your Gmail account with your user name and the password.  
Go through your login process and now try to check Menu > Settings > Account &amp; Sync.  
Select “Add account” and add a secondary account.  


This solution will work out if the above doesn’t works.