@Zigaroo It looks like a new update is available? https://www.tp-link.com/us/support/download/deco-xe75/v1/#Firmware

@Wrayman It now looks like it is available? https://www.tp-link.com/us/support/download/deco-xe75/v1/#Firmware

I ordered the following: Eightwood 4G LTE Antenna 35dbi SMA Male Adapter Omnidirectional LTE Antenna 2m Cable + 2pcs SMA Jack Female to TS9 Plug Male Adapter for 2G 3G 4G LTE Router GSM WLAN...

@MarkRB I know you currently have an Archer MR200 4G router and a Archer MR600 4G+ router but you might be able to improve your download/upload speeds if you use an Archer MR600 (Cat 6) 4G+ router...

Looks like your setup 'dwarfs' mine 😃 My setup includes a WiFi mesh system from another manufacturer and can be setup as a router or access point. Hopefully someone can help you from the forum with...

robdy2k wrote @Fl1nst0ne - thanks for this, I'm following your lead here. On your network diagram is the TL-R480T+ also your firewall please? I find it odd that many people are staying the 480...