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<body><div style="font-family:Arial;">I saw this issue randomly on Windows PCs due to IPV6 TCP checksum offloading. </div>
<div style="font-family:Arial;"><br></div>
<div style="font-family:Arial;">Try the following on the problem Windows machine:<br></div>
<div style="font-family:Arial;">- Open the Device Manager -> Network Adapters -> Network Interface (Ethernet NIC):<br></div>
<div style="font-family:Arial;">- Under the Network Adapter -> Advanced Tab, disable these options if present:<br></div>
<div style="font-family:Arial;">TCP Checksum Offloading (IPV6) -> Disabled<br></div>
<div style="font-family:Arial;">UDP Checksum Offloading (IPV6) -> Disabled<br></div>
<div style="font-family:Arial;">- Try Windows update again<br></div>
<div style="font-family:Arial;"><br></div>
<div id="sig19811753"><div class="signature">--<br></div>
<div class="signature">Clinton Work<br></div>
<div class="signature">Airdrie, AB<br></div>
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<div>On Sun, Nov 11, 2018, at 2:29 AM, Mark Tinka wrote:<br></div>
<blockquote type="cite"><span class="font" style="font-family:Tahoma">Hi all.<br> <br> Anyone ever figured out why Windows updates fail when the computer
has an IPv6 connection?<br> <br> Google has tickets and tickets of this to and outside of Microsoft
since 2013, with no real solution or answer as to what the problem
actually is. In essence, many of the solutions out there point
toward making sure the updates do not occur over IPv6, which, in
effect, is the same as disabling it.<br> <br> I have a family PC at home running Windows 10 Pro, and noticed
updates would fail in recent months. It took me a moment to
realize that this started happening only after I enabled IPv6 in
the TCP/IP stack. Disabling it immediately solves the issue.<br> <br> Quite odd that this is happening in 2018...<br> <br> Mark.</span></blockquote><div style="font-family:Arial;"><br></div>
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