My network consists of a mix of X60, X55, and M5 devices with the x60 set as the Main router.  My internet speed is 375/20 as tested on the Deco speedtest however all devices on the network get a maximum upload speed of around 12mbps.  I have browsed the other threads and tried the remediation steps including setting QoS to Standard, removing High Priority devices, turning off Ani-virus, and connecting via ethernet cable.    Any more ideas as to how I can get full upload speed?

Thanks

Mtgomer.