Hey everyone,
We are currently tracking the issue with the red/incompatible realms. It looks like all players are in the same area (New Mexico) and using Comcast as their ISP. At this time, we do recommend reaching out to Comcast to see if there is anything going on. Alternately you can try using a Hotspot or VPN to connect, Please note that we do not assist in setting this up nor choosing one to use. In the case of the VPN there are several that offer free trials, these are typically data capped but should be enough to test the issue. With a tethered or mobile hotspot connection you will need to reach out to your mobile carrier to find out if this is available for your plan and for instructions on how to do this.
If the issue continues after that as Orlyia mentioned please submit a ticket to our technical support team. Please include system files and a WINMTR.