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I agree with Kyle certain kinds of Linux support being less needed,
but new things keep cropping up.<br>
<br>
In last December, my Win 10 VM running in VirtualBox 7.x on Fedora
40 suddenly lost network connectivity.<br>
Windows tells me: "Unidentified Network/No network access."<br>
<br>
From the command prompt:<br>
<blockquote>
<blockquote>Microsoft Windows [Version 10.0.19045.5131]<br>
(c) Microsoft Corporation. All rights reserved.<br>
<br>
<a class="moz-txt-link-freetext" href="C:\Windows\system32">C:\Windows\system32</a>>ping 192.168.0.1 [My wireless router]<br>
<br>
Pinging 192.168.0.1 with 32 bytes of data:<br>
PING: transmit failed. General failure.<br>
PING: transmit failed. General failure.<br>
PING: transmit failed. General failure.<br>
PING: transmit failed. General failure.<br>
<br>
Ping statistics for 192.168.0.1:<br>
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),<br>
<br>
<a class="moz-txt-link-freetext" href="C:\Windows\system32">C:\Windows\system32</a>><br>
<br>
<a class="moz-txt-link-freetext" href="C:\Windows\system32">C:\Windows\system32</a>>ipconfig<br>
<br>
Windows IP Configuration<br>
<br>
<br>
Ethernet adapter Ethernet:<br>
<br>
Connection-specific DNS Suffix . :<br>
Link-local IPv6 Address . . . . . :
<a class="moz-txt-link-freetext" href="fe80::a6c5:72ec:2bb3:85b4%11">fe80::a6c5:72ec:2bb3:85b4%11</a><br>
Autoconfiguration IPv4 Address. . : 169.254.244.232<br>
Subnet Mask . . . . . . . . . . . : 255.255.0.0<br>
Default Gateway . . . . . . . . . :<br>
<br>
Ethernet adapter Ethernet 2:<br>
<br>
Connection-specific DNS Suffix . :<br>
Link-local IPv6 Address . . . . . :
<a class="moz-txt-link-freetext" href="fe80::5e36:9bde:16cf:301c%15">fe80::5e36:9bde:16cf:301c%15</a><br>
Autoconfiguration IPv4 Address. . : 169.254.223.53<br>
Subnet Mask . . . . . . . . . . . : 255.255.0.0<br>
Default Gateway . . . . . . . . . :<br>
</blockquote>
</blockquote>
<br>
I haven't been able to find anything that restores the internet
connectivity. In fact, when I tried opening an earlier snapshot of
the Windows VM, one from a time at which there was internet
connectivity, that snapshot now also had no internet connectivity.<br>
<br>
Also, I thought maybe the December Windows updates had caused the
problem. But rolling back the updates in the VM did not help.<br>
<br>
One idea has just come to me. About the same time the VM network
failed, I started getting warnings that<br>
<font face="Times New Roman, serif">"VirtualBox can’t operate in VMX
root mode." I found that running these two commands turn off KVM
without needing to recompile the kernel:<br>
</font>
<p align="left"
style="font-weight: normal; line-height: 100%; text-indent: 0in; margin-left: 0.3in; margin-bottom: 0.06in">
<font face="Times New Roman, serif">sudo modprobe -r kvm_intel</font></p>
<p align="left"
style="font-weight: normal; line-height: 100%; text-indent: 0in; margin-left: 0.3in; margin-bottom: 0.06in">
<font face="Times New Roman, serif">sudo modprobe -r kvm</font></p>
<font face="Times New Roman, serif">This seems to work fine until
the next time I reboot the computer. Then I have to run it again.<br>
<br>
Is there any chance that this step, to turn off KVM, somehow
interferes with the VB VM network connectivity?<br>
Does anyone have any suggestions for other solutions?<br>
<br>
Thanks.<br>
</font><br>
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<p align="left"
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face="Times New Roman, serif"><br>
</font></p>
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<br>
<div class="moz-signature">-- <br>
Eric Beversluis<br>
<a class="moz-txt-link-abbreviated" href="http://www.ericbeversluis.com">www.ericbeversluis.com</a><br>
2x Honorable Mention--Writer's Digest Contest</div>
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