As great as is UNIX/OS X, it IS complicated technology, which is not always seamlessly operating. Also, the service providers make upgrades in their systems, too, and frequently are "cutting edge." Your system may work quite properly, or quickly enough. If you have carefully set up your settings and double checked them, then probably it is not your fault, but who really knows!!!! Spontaneous regeneration is alive and well!
One trick which sometimes works is to shut everything down, let it sit for a few minutes, and then restart everything up in the proper order.