Check InternetĪ mere internet glitch can also be the reason for facing issues while syncing emails from Gmail to Outlook. Tip- Do not install any Windows update till the sync issue with Outlook gets resolved.
Afterward, try to sync Gmail with Outlook again. So, if you have also installed these updates for your Windows, you must uninstall them forthwith. There are certain updates like KB2837618 and KB2837643 that result in sync errors not only with Gmail but also with most of the other email services.