@David_vt 

Thank you for your feedback.

Please visit our official website to get a hold of your local TP-Link Support team to deteremine the issue and next steps to take: www.tp-link.com

@David_vt 

There is a bug with the software app that enables something in the router to make it slow down. The router needs to be factory reset to get the speed back. Its an option that we cant tweak in the current firmware so im not sure what the software is actually achieving by doing this.

My random guess would be the qos. Tplink needs to make an option to fully disable it.

@Shaun_L 

I did experience this same issue and it was enabling and the disabling the QOS feature in the software. Reseting the router to factory defaults and going through the setup and leaving QOS disabled seem to do the trick so my hardwire speeds were no longer reduced.