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Severe Packet Loss and Ping Spikes on TX401 V2 with Windows Server (Not Present on Linux)

Severe Packet Loss and Ping Spikes on TX401 V2 with Windows Server (Not Present on Linux)

Severe Packet Loss and Ping Spikes on TX401 V2 with Windows Server (Not Present on Linux)
Severe Packet Loss and Ping Spikes on TX401 V2 with Windows Server (Not Present on Linux)
Saturday
Model: TX401  
Hardware Version: V2
Firmware Version: N/A

Hi,

 

I’m using a TP-Link TX401 V2 network card, and I’m experiencing severe packet loss and ping spikes whenever there’s a download or a speed test on Windows Server 2025 (and also tested on 2022).

 

I’ve tried the latest Marvell AQC113 drivers, flashed the BIOS, and tested multiple configurations — including disabling offload, EEE, and power-saving options — but the issue persists.

 

Interestingly, this problem does not occur on Linux, where the connection remains perfectly stable under load.

 

I’ve also completely reinstalled Windows Server multiple times, but the behavior remains the same.

 

Could you please advise what might be causing this or provide an updated driver or firmware fix?

 

Thank you

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#1
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4 Reply
Re:Severe Packet Loss and Ping Spikes on TX401 V2 with Windows Server (Not Present on Linux)
12 hours ago

  @Aarakocra ,

It is recommended that you change the PCIe configuration in the BIOS from Auto/Gen4 to Gen3.

Also, you can consult the motherboard manufacturer or search for help.

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#2
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Re:Severe Packet Loss and Ping Spikes on TX401 V2 with Windows Server (Not Present on Linux)
9 hours ago

  @Joseph-TP 

 

I’ve already tried that.

 

Once again, it’s not a motherboard issue — all three of my servers have the same problem. They’re using B850M DS3H / ASUS boards and running Windows Server 2025.

 

This issue doesn’t occur on Linux, so it’s clearly a driver-related problem

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#3
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Re:Severe Packet Loss and Ping Spikes on TX401 V2 with Windows Server (Not Present on Linux)
8 hours ago

  @Aarakocra Thank you!laugh 

Wilfred Lind
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#4
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Re:Severe Packet Loss and Ping Spikes on TX401 V2 with Windows Server (Not Present on Linux)
4 hours ago

  @Joseph-TP What do I do now?

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#5
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Replies: 4

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