Ethernet slow when laptop on AC-power

March 1, 2019 at 07:27:59
Specs: Windows 10, 8Gb
When I use a ethernet connection to the internet and work on battery power, my internet speed is around 30 Mbps, if I plug in the charger (AC-power) this speed drops to around 5-6 Mbps. When working wireless I don't notice any difference. I really don't understand how this is possible. Can someone explain and perhaps point to a solution?

Laptop: Acer E 15, Windows 10, 8Gb memory, Realtek PCIe Gbe family ethernet card.

message edited by Wanderer62

See More: Ethernet slow when laptop on AC-power

March 1, 2019 at 13:30:50

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March 1, 2019 at 17:00:31
You might also want to look at this previous discussion (although it involves a Dell and not an Acer):

"Channeling the spirit of jboy..."

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March 2, 2019 at 01:39:57
Thanks for answering. Actually I did look at that post and saw it was concluded that is was the charger itself. In my case the charger (the original) seems to be working perfectly, charging as fast as it did when I bought this laptop.

Another clue which makes me doubt that the charger is the culprit is something I just found out today: I connected to another network and the speed remained the same with or without charger (at around 190 Mbps).

So there is something in the cooperation between the other router/switch (a company router/switch of my client, so I cannot test with it) and my laptop. Other laptops seem to connect perfectly to that router/switch, connecting my laptop to other sockets (in another room, connecting to the same router/switch) didn't change my problem. So it's not the cabling.

Any other ideas?

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