Hi guys.

I have a VR600v modem router and aussie broadband nbn(cable)

when I test the internet speed with wifi it is all good appx 50mbs download and over 10mpb upload..

But when I connected it with wire lan cable via powerline adpater or not download speed under 1mpbs....  but upload is okay..

Thing is I used same lan cable and powerline adapter with optus.. and is was okay...

but I changed it with tplink modem router this things happen.

Powerline adpater is also tplink one(TL-PA411)

Is there any hardware or software issue with this modem router?

I can see the other brand router has a simillar issue from the other forum but I can not find solution.

hopefully, I can find a solution from here.