Posting this here for other newbies not to have to spend as much time as I have to be able to connect to the network.
When you are setting your RTK service up on your Mavic 3e controller, don’t be an idiot like me and enter the whole “http://rtk.rockrobotic.com” into the NTRIP URL box. You just need to enter “rtk.rockrobotic.com”
After hours and hours of research, trial & lots of errors…I almost gave up. I’m sure most of you probably already knew that but I sure didn’t. I entered the info just as it shows on the site.