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Ethernet frequently disconnects and reconnects - Windows 10 - Wired Connection

Anonymous
2024-10-07T00:17:27+00:00

My PC is connected to the internet via Cat 9 ethernet cables. Sporadically, the internet will disconnect and reconnect repeatedly, being offline for only a few seconds. I've tried upgrading drivers, uninstalling and reinstalling the network adapter, as well as mucking about with my modem/router combo. The problem started about a month ago, and it doesn't appear than any other devices are affected.

No error messages. Ping test shows average of 32 ms, with spikes up to 1800 ms.

System Information report written at: 10/06/24 19:14:11

System Name: NATHANS-DESKTOP

[System Summary]

Item Value

OS Name Microsoft Windows 10 Home

Version 10.0.19045 Build 19045

Other OS Description Not Available

OS Manufacturer Microsoft Corporation

System Name NATHANS-DESKTOP

System Manufacturer To Be Filled By O.E.M.

System Model To Be Filled By O.E.M.

System Type x64-based PC

System SKU To Be Filled By O.E.M.

Processor Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz, 3601 Mhz, 8 Core(s), 16 Logical Processor(s)

BIOS Version/Date American Megatrends Inc. P4.50, 5/14/2020

SMBIOS Version 3.1

Embedded Controller Version 255.255

BIOS Mode UEFI

BaseBoard Manufacturer ASRock

BaseBoard Product Z390 Pro4

BaseBoard Version

Platform Role Desktop

Secure Boot State Off

PCR7 Configuration Binding Not Possible

Windows Directory C:\WINDOWS

System Directory C:\WINDOWS\system32

Boot Device \Device\HarddiskVolume2

Locale United States

Hardware Abstraction Layer Version = "10.0.19041.3636"

User Name NATHANS-DESKTOP\Nathan

Time Zone Central Daylight Time

Installed Physical Memory (RAM) 32.0 GB

Total Physical Memory 31.9 GB

Available Physical Memory 24.1 GB

Total Virtual Memory 36.7 GB

Available Virtual Memory 24.5 GB

Page File Space 4.75 GB

Page File C:\pagefile.sys

Kernel DMA Protection Off

Virtualization-based security Not enabled

Device Encryption Support Reasons for failed automatic device encryption: TPM is not usable, PCR7 binding is not supported, Hardware Security Test Interface failed and device is not Modern Standby, Un-allowed DMA capable bus/device(s) detected, TPM is not usable

Hyper-V - VM Monitor Mode Extensions Yes

Hyper-V - Second Level Address Translation Extensions Yes

Hyper-V - Virtualization Enabled in Firmware Yes

Hyper-V - Data Execution Protection Yes

Windows for home | Windows 10 | Internet and connectivity

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2024-10-07T04:21:01+00:00

    Hi OneSki,

    I have reviewed the issue, and from my understanding , It sounds like you've already done quite a bit of troubleshooting on your own, but since the issue persists with disconnections, I’ll guide you through some additional steps to try and isolate and resolve the problem.

    Step 1: Check Ethernet Cable and Port

    Even though you’re using Cat 9 cables, there might be a physical issue with either the cable or the Ethernet port.

    1. Try a Different Ethernet Port:

    o If your modem/router combo has multiple LAN ports, try plugging the cable into a different port.

    1. Try a Different Ethernet Cable:

    o Even though Cat 9 cables are designed for high speeds, they can still get damaged or have internal wear. Try using a different Ethernet cable (Cat 6 or Cat 7) to see if the issue persists.

    Step 2: Test Network Using a Different Device

    Since other devices on the network aren’t affected, try connecting a different device (laptop, etc.) via Ethernet to the same port and cable. This will help you determine whether the issue is specific to your PC or the network.

    1. Run the Same Ping Test on another device to see if you experience the same high latency spikes and disconnections. This can help you figure out if the issue is with the cable, router, or your specific PC.

    Step 3: Disable Power Management for Network Adapter

    Windows might be putting your network adapter to sleep, which could cause temporary disconnections.

    1. Open Device Manager:

    o Press Win + X and select Device Manager.

    1. Disable Power Management:

    o Find your Ethernet adapter under Network adapters, right-click it, and select Properties.

    o Go to the Power Management tab.

    o Uncheck Allow the computer to turn off this device to save power.

    o Click OK and restart your computer.

    Please let me know if you need further assistance and keep me updated.

    Best regards,

    Arvind

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  2. Anonymous
    2024-10-17T22:27:18+00:00

    It was the ethernet Cat 9 cable that got bent wrong. Thanks for the help!

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  3. Anonymous
    2024-10-10T05:46:13+00:00

    I hate that Microsoft logs me in here with whatever email account I was last working with...

    Anyway, my main account is this one.

    I changed out the ethernet cable that connects my PC to my wall jack, and will have to give it a few days to see if the problem persists. If it's as simple as a cord, I'll be absolutely thrilled!

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  4. Anonymous
    2024-10-10T04:34:30+00:00

    *sigh* Did not fix it. Just checked the wiring as well, and the ethernet cables are secure. I think the problem got a little better, maybe? But definitely still happening.

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