Hi Chris,
Plenty of things you can try to fix this. The easiest and quickest would be to clear the xbox hard drive cache.
To do this press the xbox button, scroll all the way to the right and choose system settings or system preferences (I forget which one).
Go to storage devices, choose the hard drive and press Y. Choose clear system chache, wait until complete and open the Titanfall game.
If this doesn't work, I'd restart your modem/router. They can occasionally have errors which might be preventing it from connecting.
So turn the router off, unplug it from the wall, wait a minute or so, and plug it back in then turn it back on.
The last thing I'll suggest is to make sure you have opened all of the nescessary ports for Titanfall.
http://help.ea.com/en/article/online-ports-to-open-for-titanfall/
It may also pay to check on the manafacturers website for you router, and make sure that it has all of the latest firmware.
Good luck!
