Quite often when I click Thunderbird's "Get Messages" button, things don't work. I do usually get the notes at the bottom of the window saying, "Connecting to [mail server]..." and then, immediately, "Connected to [mail server]..."--but then nothing, until a minute and a half later when the note disappears entirely (and still no downloads). But then sometimes I don't even get those notes at the bottom. A little while later things may return to normal, except for the last couple of days when no downloads at all from this mail server have succeeded--not even automatically when Thunderbird starts up. I can always go directly to my email account via Firefox without any delay, but I do like Thunderbird. This has been going on occasionally for months, but it has been getting worse lately. Restarting Thunderbird or rebooting the computer doesn't seem to help. Outgoing mail works properly, so I guess the Account Settings are OK. The same behavior with two of my other Thunderbird accounts (from the same mail server), but not with a third (from a different server)--that works fine. Oh, and when the set periodic time comes to automatically download new messages, "No messages to download" appears at the bottom note area--just like it does when the computer wakes up from a sleep and has not yet automatically reconnected to the Internet. Using Thunderbird 31.5.0 on Win 8.1.