Using both ports on my powerline adapter stops the internet working

[Hubilidan]

My setup -
Computer room:
Router -
Lan 1 - Printer
Lan 2 - Computer
Lan 3 - Duel powerline adapter 1 - port 1
Lan 4 - Duel powerline adapter 1 - port 2

My Room
Duel powerline adapter 2 - port 1 - Hue Bridge
Duel powerline adapter 2 - port 2 - Computer

Using this setup stops the internet from working. If I were to unplug either of the ethernet cables from powerline adapter 1 then the internet will work. Even if nothing is plugged into powerline adapter 2, simply having both ports on powerline adapter 1 connected to the router stops the internet, but using just one will work.

I have used different cables, different ports on the router, even used a different router, but I still have the same problem.

 

[Ralston18]

I believe that you have set up a loop within your network.

First, sketch out your entire network and show all devices and individual LAN/WAN ports. Connect the ports as they are currently connected between devices.

Second, google "how to fix home network loop"

Here is a starter link for you:

https://kb.netgear.com/000037817/What-is-loop-detection-and-how-does-it-work-on-my-GS808E-Nighthawk-S8000-Gaming-Streaming-Switch

And this link as well. More involved but the point is to help identify or confirm the problem.

https://0x2142.com/?p=558

Read the link and then, based on your understanding, google using words and phrasing applicable to your network and devices.

Should be fairly straight forward to resolve once you have the full picture in mind and can see where the loop is being created.

Device make and model information will be helpful. May be a configuration setting that could be applied.

And do take a close look at the User Guide/Manual for the powerline adapters - there may be some "cautions" therein.

 

[bill001g]

The ports in the powerline adapter are connected together. This is the same as if you took a cable and connected 2 ports on your route together.

Unless the router has a feature called spanning tree to block this you get a loop and it will take your network down.

 

[kanewolf]

The two links from your router to your powerline are the only cables you have to change. You have to have special hardware to support link aggregation to allow two physical links to function.