Upgraded from AC1750 wifi 5 to AX55/3000 - and have had problems with Apple airplay on a new TCL Roku TV as well as Tablo dvr.  Once would think that the upgrade would be seamless but cant use airplay now as well as my dvr.  Have contacted both ROKU and Tablo to help with fix.  Have also gone through the various troubleshooting out there for both Apple airplay, changing some router settings, and also ROKU tickets for their engineering support group.  Nothing is working and nothing is fixed.  Does TP have a fix?  Anyone out there having similar issues.  Im ready to send the AX55 back and revert to the older AC1750 bc the problems just aren't worth the aggravation.