This has hit me and a bunch of others I know so I thought I should toss this up here in case anyone's been experiencing this and hasn't pinpointed it yet.

With the latest major update ("1809" / "October 2018 Update") to Windows 10, at least some PingZapper users are getting random bluescreen crashes with the error code "UNEXPECTED_KERNEL_MODE_TRAP" while connected to the game. If this exact situation is happening to you or someone you know, try disabling that first before you waste a whole bunch of time troubleshooting your system like I did.