Speed at router (RT-AX88U Pro) is as expected, speed at all computers and phones is slow

[WeyldFalcon]

1. My router (RT-AX88U Pro) clocks my internet connection speed at around 1.4Gbps
2. My 2 wired desktops and my laptop clock around .45Gbps
3. My cell phone on wifi clocks around .62Gbps (not surprising)
4. I have 1G NICs on all my hardware except my main computer which is a 2.5G
5. I am using Cat6 cable
6. I turned off QoS
7. I am running Firmware version 3.0.0.6.102_33308
8. If I run speed test on 3 systems (2 desktops and phone) I can get the Download Bandwidth monitor to jump up to 1.4Gbps but not on a single machine.
9. What could be causing this throttling?
10. Follow-up question why are my wired machines getting slower downloads than my wireless cellphone?

[jzchen]

I'm honestly not sure how they set it to work.  I'm afraid (forum members (on the ROG forum where I've been more active) have mixed results.  If you can't get it to work I'm afraid a return/ASUS tech support call is in order...

[WeyldFalcon]

No luck, put router in restore mode, set static IP for NIC, software kept refusing to restore firmware.