Maintenance for the week of August 10:
• NA megaservers for patch maintenance – August 10, 4:00AM EDT (8:00 UTC) - 12:00PM EDT (16:00 UTC)
• EU megaservers for patch maintenance – August 10, 8:00 UTC (4:00AM EDT) - 16:00 UTC (12:00PM EDT)
Its your internet connection most likely. Reboot all your modems and routers and what not and try again. If that doesnt help then contact ZOS for help because something is wonky and they need to fix it.