Question Ethermet connection slow when laptop on AC-power

[gnvdk]

When I use a ethernet (cabled) 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.

 

[ElectrO_90]

Sounds insane to me, I really would have no idea, unless some Power settings device was working in opposite (maybe setup wrong)
Just make sure Power settings are all set to maximum and not in saving mode.

 

[gnvdk]

Thanks for your reaction. I actually tried that. It didn't change anything (all power management options where the same: plugged or wireless).

To add to the mystery I tried the same on another network: no change of internet speed (about 190 Mbps) when I plugged or unplugged the charger.

Changing cables and sockets in the original network didn't help (still low speed on AC-power). Other laptops didn't have the problem.

Unfortunately I cannot fiddle around with the router/switch of the network where i experience the speed drop. It's a business set-up from a client.

Any other pointers what to look for?

 

[ElectrO_90]

Power shouldn't affect the performance of the Lan - I just can't see how it is. Sorry, I really wish I could be more helpful, just can't work it out.

 

[gnvdk]

Well, I can't either..... lol.. so you are not the only one. Thanks for thinking about it anyway!

Maybe someone else has a brain wave we don't.