Outlook cannot find server and passwords are not saved

Hi,

We've been repeatedly trying to connect 3 email accounts (Kerio, Office 365 and Gmail) to Outlook 2011 installed from Office 365. We're facing 2 problems

1. Outlook can't seem to authenticate email accounts. When we try to remove the account and put it back in, it works. After a few hours, the issue below appears. This is true not only for Gmail but also for Office 365 and Kerio.

2. passwords are not saved perpetually. After a day or two, Outlook prompts us to type in the passwords again for all 3 accounts.

We've tried this approach for the "outlook cannot find server" issue without any luck: http://support.microsoft.com/kb/2409268/en-us; and we've tried this approach for the password issue: http://answers.microsoft.com/en-us/mac/forum/macoffice2011-macoutlook/password-wil-not-be-remember-in-outlook/470b1521-eaf5-411c-b070-276de2629cc5 but it was not resolved.

Additionally, we've tried to remove all the accounts and put them back in, reinstall Office 2011 several times over, and change the proxy settings and open all required ports in the network.

Kindly requesting assistance on these 2 issues.