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08-18-2020

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Decelerating Network Speed

2020-08-18, 20:30 PM

Lenovo ThinkPad P70  

Type: 20ER-CT01WW

 

I have GoogleFiber run to the house.  My laptop is connected by Cat 6 Ethernet cable to the GF network box.

If I reboot my laptop, speedtest shows >900Mbps.  

After 20 minutes, speedtest shows <100Mbps.

This happens while connected wirelessly or by Ethernet cable.

 

GF says it's not their network. The GF box has been replaced. GF tech connected at >900Mbps with his laptop.

They have tested the Ehternet cable.

 

I have updated Windows 10.

I have updated the network drivers.

 

They suggested replacing the network card.

 

Anybody have any suggestions/recommendations as to how to diagnose/fix this?

 

Thanks,

Dan

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3818 Posts

12-02-2007

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Re:Decelerating Network Speed

2020-08-20, 11:46 AM

Hello,

If it happens with both the wireless and wired connections on the ThinkPad P70, then it is probably not the network card, as each one is separate and to have them both fail in the same way would be unusual.

 

Have you tried booting the computer from a USB flash drive running Linux and using that for a bit on the network to see if the slowdown occurs under a different operating system?

 

Regards,

 

Aryeh Goretsky

 



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2 Posts

01-25-2020

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Re:Decelerating Network Speed

2020-08-20, 17:42 PM

Try this fix:

 

Control Panel/Device Manager/Network Adapters/*Your Network Adapter*/Advanced Tab/Energy Efficient Ethernet/ Switch to Disabled.

Lenovo Thinkpad P53
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