If you're using the simple but useful "Stay Signed in" checkbox and there's an issue with your connection or your IP address is changed you could come across the Chrome/Google Apps equivalent of the "Blue Screen of Death", nowhere as bad and simple to fix.
You'll be faced with a white screen with the appropriate Google Apps icon & the text "The app is currently unreachable".
To resolve the issue you just need to clear your DNS by completing the following steps:
- Open your command line I.e. Dos prompt (On Windows PC, press Windows + R > type "cmd" > click Ok)
- On Command Promt type "ipconfig /release"
- Then type "ipconfig /flushdns"
- Then type "ipconfig /renew"
Another solution that works when it's just a locked session issue from a dropped connection is to log into another browser, log out and then refresh your Chrome browser.