I originally had "Problem connecting to Gmail's IMAP server?" but I copied and pasted the body into the header (by accident, I don't know what I was doing...) and completely forgot to change it back.

Also, since this is my first time using a mailing list, I'm not sure how to reply to emails. I just sent one with this exact text (minus these few sentences) with the "Re:" before the "[RCU]" and never got an email saying it was posted, so I'm sending this one with the re after.
DO NOT WRITE YOU WHOLE MESSAGE IN THE SUBJECT
AND USE A MEANINGFUL SUBJECT

Am 06.05.2012 05:08, schrieb Charles Carver:
This problem has been affecting me since I installed roundcube, I can't get Gmail's IMAP settings to work with it.

The SMTP settings work fine:

Server: ssl://smtp.gmail.com
Port: 465
User: ****
Password: ****
Trying to send email...
SMTP send: OK

But when I try to use Gmail's IMAP settings, I get the following error:

Connecting to ssl://imap.gmail.com...
IMAP connect: NOT OK(Login failed for **** from 74.110.63.15. Could not connect to ssl://imap.gmail.com:993:
Connection timed out)
I've tried multiple things, including contacting my server to see if the port was blocked (it wasn't), but nothing
is working.

I can't figure out the problem and there are no posts on the forum with a solution.

looks not like a roundcube-problem
connection timeout

however, you should post you configuration if you need help!

what says "telnet imap.gmail.com 993" from your roundcube-server?
have you tried "tls" instead "ssl"?
$rcmail_config['default_host'] = 'ssl://imap.gmail.com';
$rcmail_config['default_port'] = 993;
$rcmail_config['imap_auth_type'] = '';
$rcmail_config['imap_delimiter'] = null;
$rcmail_config['imap_ns_personal'] = null;
$rcmail_config['imap_ns_other']    = null;
$rcmail_config['imap_ns_shared']   = null;
$rcmail_config['imap_force_caps'] = false;
$rcmail_config['imap_force_lsub'] = false;
$rcmail_config['imap_timeout'] = 0;
$rcmail_config['imap_auth_cid'] = null;
$rcmail_config['imap_auth_pw'] = null;
$rcmail_config['imap_cache'] = null;
$rcmail_config['messages_cache'] = false;

That's my config for the IMAP section.

Are you suggesting I try this:

$rcmail_config['default_host'] = 'tls://imap.gmail.com';

?