I'm moving a client from Godaddy to SiteGround and did a routine nameserver update to Siteground's servers. I've done this kind of thing dozens of times. I've read that it can take 2-3 days, but I've never had it take longer than a few hours. It's been 72 hours now. I've been checking a global map via
whatsmydns.net, and it's loading the correct servers in a few places, but those haven't changed in two days. It doesn't seem like things are progressing.
Any ideas what's happening and how to fix it? I'm going to contact Godaddy later today to see if it's an issue on their end.