Had a domain expire today, and updated payment to turn it back on. Within minutes, six other dns resolvers were able to direct to my site. After 30 minutes Verisign still had not updated. After I flushed my caches on PC and router restart everything and retry after 30 minutes DNS still had not updated. Accidentally discovered the manual Verisign updater page and forced it. Result was almost immediate. Happy, but disappointing one of the largest names in the industry provides such slow cache updates. Web search results going back as far as 2004 show that updates should take place every 5 minutes, but this is not the case. Thought I had a good one here, but will now be changing 100+ devices to use something else.