There have been some issues with the Cogent server host that STO uses. If your problem persists after trying the usual options (restart, new launcher install, etc.) run a tracert on the Cryptic IP: 188.8.131.52/22 (for Windows 7 type cmd into the search bar of the start menu and in the screen that pops up put in: "tracert 184.108.40.206" (minus the quotation marks). Send those results with a nettest (available through PWE support page; just google it) and your IP address as a support ticket to PWE. There is a PWE tech support forum post on this which the devs have posted on asking players to do this if the problem persists. Hope this helps.
"That hurts worse than the uniform." - Dr. McCoy on the Vulcan salute
"On Vulcan, the teddy bears are alive. And they have six-inch fangs." - Spock on sehlats