We had 50% of our guild players that wasn't able to connect yesterday.
To solve this issue change your prefered dns to google dns (8.8.4.4)
voila, game should work now.
Depending on your isp zos changes might just not update DNS fast enough
Sue to the age of this thread and the fact it is almost 6 years old at this point, we have gone ahead and closed it down as the information within is no longer relevant. In most cases, it is better to create a new thread for discussion rather than reviving an out of date thread.