@sprintaj 

Try and swap the Deco units. the app may have you desinate a new "main" Deco. Once that is done, test it out again. Do you still get the same slowdown?

Thank you Tony ! I will try this and update.

Hi Tony. The same problem exists after swapping the units and/or changing the "Main" deco unit.

Any other suggestions? is this problem exists with other users? Thank you !

@sprintaj 

If the Wi-Fi speeds are find then the Ethernet speeds going to the first Deco seem to be fine.

So you happen to have another wired computer? Mainly to try and see if the slowdown happens on any wired connected device or just that computer.

If it is just that computer, then you could focus on that, but it is still left to see if the LAN port slows down for any connected device.

There have been some users who experience slowdown, but the slowdown would be across any access means. There is software that our tech support can provide which may help with speeds by disabling some features.

Hi Tony. The slow down is for any computer or pc connected to the Deco Lan port. I have tested this by connecting my laptop to the LAN port.

The strange part is that this issue only happens during large file downloads or streaming from my pc.  Otherwise, the port works perfectly fine. 

Could you please let me know how to access the software to disable the feature on my deco ? is this through IOS /Android APP? if yes I have already tried this by disabling Antivirus and intrusion features.. The problem still persists after that . 

Thank you! 

@sprintaj 

It is a form of firmware, you will need to contact our home support to get that:

https://www.tp-link.com/us/support/contact-technical-support/#Hotline-Support

Hi Tony .. Not much support from TP-Link technical support. they are just spinning the issue..Either they don't have a clue on how to solve  this or just doont want to.. :( 

@sprintaj 

Sorry about that.

Shoot a email to: ussupportteam@tp-link.com

They will give you what you are looking for.