Internet Speed Decrease when computer plugged into charger

February 22, 2016 at 17:45:49
Specs: Windows 64
I have an Acer E5-511 quad core laptop. The internet works great when not on the charger. Once the charger is plugged in the internet response becomes sluggish and jerky. Speed drops from 55 Mbps to 14 or less. As soon as the charger is removed, the speed returns to normal. I have searched web and adjusted settings to power menu. If anyone can help, it would be most appreciated.

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#1
February 22, 2016 at 20:17:12
Is this the Original charger that came with the laptop?
Is your AC plug grounded? If so try to use an adapter that disconnect the ground.

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#2
February 22, 2016 at 21:06:27
No, but it happens with the original and the compatible adaptor. The AC outlet is not grounded. I will try to work with the info that you have given. I will let you know tomorrow. Thanks.........

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#3
February 25, 2016 at 11:47:31
No solution yet. Plugged into grounded and non-grounded from different locations......same results. Searched the web and I have not come up with a solution. If you find a solution, please let me know as well. I can't understand why more power would cause the internet speed to decrease. By the way it happens to wi-fi and direct wired connection to the internet.

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Related Solutions

#4
February 25, 2016 at 20:54:33
Computer and both chargers will be 1yr old March 2016 and both have the same input/output values as well. My chargers are Liteon and the OEM but they both act the same.

On another board, someone said he solved it by replacing his wireless card and going with a realtek but I have a Realtek wireless card.......so I am not trying that. He claimed that his wireless was not compatible with his router and modem. I don't see how the power adapter should affect that. You would think more power would increase the wifi.

(sigh)


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#5
February 26, 2016 at 07:26:15
When you are running on battery alone the voltage into the computer is going to be less than when it is running on just the charger. As your problem occurs on both Wifi and Ethernet the only thing that makes sense to me is if the motherboard power regulator is faulty and allowing the voltage to rise too far for the network components. If I'm right then motherboard replacement is the only option.

I accept that the symptoms are most weird though. Is the computer still in warranty?

Always pop back and let us know the outcome - thanks

message edited by Derek


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#6
February 26, 2016 at 09:19:45
Yes,it is still under warranty, but expires in March........ I will call today. That makes sense. Wow........glad you contacted me today. I will let you know what they say.

Thanks again,


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#7
February 26, 2016 at 10:25:39
Eureka! Finally a solution. Just talked with Acer and they agreed that it was probably the regulator. They will repair since it is the regulator and it's under warranty. The repair will probably be a new motherboard.

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#8
February 26, 2016 at 12:01:32
No, I don't have a second laptop that I can use to check. If your internet drops on LaptopB when charger is plugged into LaptopA, I don't know what the problem could be. I now would like to try a second computer...... I will try to see if I can locate another before I send back to Acer for repair. I will let you know.


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