Can’t access gmail account with Windows Live Mail 2011

I cannot get my gmail account to open anymore with WLM 2011. Using Windows 7 Home Premium. It was working fine until recently. I have multiple accounts and they all work fine. I have tried turning off the firewall and anti-virus software, but still nothing. Have checked the settings multiple times and confirmed them with Google. I entered the same account information on a different computer on my network with Windows 7 Professional and it works.  Do you know what might be causing this?