I just purchsed the TP-Link Deco AXE5400 2-pack mesh router system. The individual router is the XE75. After the initial setup I was blown away by the speed increase. Before my old Netgear Nighthawk router was delivering 120MBps at best. Now with the Deco XE75, the speed was close to 300Mbps.  Closer to the router upstairs the speed also increased.

What was a bit troubling was the interaction with our Roku 4K.  I reset all devices, including the Roku. The content was very slow to buffer and show on our Smart TV which is wireless.  I did upgrade the firmware to 1.2.9 Build 20240724 Rel. 39578 when setting it up.

Connecting back the Nighthawk RAX20 the Roku streaming (Netflix,Hulu) improved back to the way it was.

Has anyone else experienced this?  We use Spectrum internet for our internet/phone/cable and have 500Mbps service.  Is there a way to get the streaming to work better with the Deco XE75?  If not, I am going to have to return this product and look for something else.