Does your P4 with Firmware v2.00.0700 and RC V1.9.3.0 work WITH HDMI MODULE INSTALLED and iOS 11.1 or 11.2 with no video or range issues?
I have tried several firmwares through the years but it seems like the only firmware combination that worked perfect with the HDMI Module installed in remote was P4 v 01.02.0602 and RC v 1.6.0