"6062-Lso was triggered" appears in Event Viewer. How can I disable "large send offload"?

Question

I use a Lenovo Thinkpad E495.

When WiFi roaming,
6062-Lso was triggered
appears in Event Viewer.

22:05:01.2198709: 7021 - Connection telemetry fields and analysis usage
22:05:01.2198709: 7003 - Roam Complete
22:05:29.8405925: 6062 - Lso was triggered

Non-roaming (about once a day)
9/15 22:11:56 7021 - Connection telemetry fields and analysis usage
9/15 22:11:58 6062 - Lso was triggered

At this time, I am concerned that the network may be temporarily disconnected.
The E495 WiFi adapter (Intel Wireless-AC 9260 160MHz ver23.40.0.4) does not have a setting to disable "large send offload".
How can I disable "large send offload"?

Note that when looking at "Duration" under "Status" in the network adapter's right-click menu, no disconnections seem to have been detected after power-on or sleep recovery, and the time that the connection has remained active is display.

During power down or sleep, I have no problem since I am not transferring data, but the problem is that warning 6062 is logged when roaming.

If this forum can answer that "Event6062 is a problem at the network interface layer and no real disconnection occurs because retransmission requests, etc. are handled at the protocol layer above it," then I can close this question and use this PC without worry.

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The following settings have been changed to resolve the 6062 error.
I tried these things, but they did not solve the problem.

1. Disable 2.4GHz wireless on the router.
2. Fix 36 channels of 5GHz wireless LAN on the router.
3. Reinstall the WiFi network adapter driver.
4. change WiFi network adapter settings on PC
   MIMO power saving mode -> No SMPS
   Priority band: 3. Priority 5GHz band
   Power Management Tab:
   Allow computer to turn off this device to save power -> Uncheck
5. Power Option Settings
   Wireless adapter settings
   Battery, when connected to power supply >> Maximum Performance
   PCI Experss > Power Management for Link State Off
6. Change DNS server address
   (IPv4)
   Preferred DNS: 8.8.8.8.8
   Alternative DNS: 8.8.4.4.4
   (IPv6)
   Preferred DNS: 2001:4860:4860::8888
   Alternative DNS: 2001:4860:4860::8844
7. Go to Settings -> Network and Internet -> Advanced Network Settings -> Reset Network
   and reboot
8. Group Policy Editor
   Computer Configuration -> Administrative Templates -> Network -> Windows Connection Manager
   Minimize simultaneous connections to domains... to Disabled
9. roll back the WiFi network adapter driver
10. netsh int ipv4 reset all
    netsh int ipv6 reset all
11. Initialize BIOS settings

Answer 1

Hello,

 

Thank you for posting in Q&A forum.

Please kindly find the proper way to disable "large send offload" below:

1.Open Device Manager -> Find the adapter -> Right click to open the properties ->Advanced tab -> Property list -> Disable Large Send Offload v2 (IPv4) and Large Send Offload v2 (IPv6).

2.Or you can open CMD window and try below commands to disable it:

netsh int tcp set global chimney=disabled

netsh int tcp set global autotuninglevel=disabled

netsh int tcp set global rss=disabled

 

I hope the information above is helpful.

If you have any questions or concerns, please feel free to let us know.

 

Best regards，

Jill Zhou

 

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Answer 2

The following have come up as possible causes

Lenovo Vantage Wi-Fi settings

https://okbizcs.okwave.jp/lenovojp/qa/q10292533.html

I'm going to try turning off the Lenovo Vantage Wi-Fi auto-recovery setting and see what happens.

I've been connected for a few hours and so far I haven't seen any 6062-Lso was triggered by extra roaming.