@Nits1911 Here is comparison page for these two models: https://www.tp-link.com/ca/compare/?typeId=5700&productIds=107756%2C107754 The only difference I can find is Ethernet ports speed: BE65 has all...

@Azorin Deco E4 has 100Mbps Ethernet ports. You can't get Internet speed faster than that from it.

@albgen Consider disabling 2.4 GHz band in Main Network for Deco. You can do that in Deco app. This will exclude the possibility of your devices switching to 2.4 GHz instead of using much faster 5...

@ja1peg You may wish to check hardware specs of your laptop: many laptops, even new models, have 100Mbps Ethernet port. If you verified your laptop has gigabit Ethernet port, take laptop together...

@ShapePivot Deco X50 should be compatible with X80. Other Deco models worth considering are X10, X20, X55, X60, and X50-PoE. With larger model number you will usually get better performance, meaning...

@bemak187 In Router mode, this is how Deco units should be connected: If this is what you have, you'll need to check connection between Main Deco and switch. What you describe matches the problem...