Speed “throttled” on Firestick?

Hello All. I have 3 of the original Firestick 4K Max connected to a 1.5 gbit Ethernet hardwired connection through a gigabit switch. Originally I was getting approx 300 meg download speed through 2 of the sticks and approx 97 meg (for some unknown reason) to the third stick. Recently they all dropped down to 97 meg and have stayed there. What gives? Is my provider slowing down my speed deliberately?

A post was merged into an existing topic: How to Setup the Best Firestick Ethernet Adapter and Improve Download Speeds