Hey @Chris_Esperian,
As this comes up occasionally I’ve written about it in more detail at querySrv errors when connecting to MongoDB Atlas | ALEX BEVILACQUA.
The TL;DR is this is a DNS query timing out so the seed list of server the MongoClient needs to connect to isn’t being retrieved. You can work around this by just using the legacy mongodb:// connection string for your cluster instead of the mongodb+srv:// variation.