| 1 | <?xml version='1.0' encoding='UTF-8'?>
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| 2 | <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 3 | <topic xml:lang="en-us" id="ts_win-host-bridged-network-adapters">
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| 4 | <title>Bridged Networking Adapters Missing</title>
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| 5 |
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| 6 | <body>
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| 7 | <p>
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| 8 | If no bridged adapters show up in the
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| 9 | <b outputclass="bold">Networking</b> section of the VM
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| 10 | settings, this typically means that the bridged networking
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| 11 | driver was not installed properly on your host. This could be
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| 12 | due to the following reasons:
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| 13 | </p>
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| 14 | <ul>
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| 15 | <li>
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| 16 | <p>
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| 17 | The maximum allowed filter count was reached on the host. In
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| 18 | this case, the MSI log would mention the
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| 19 | <codeph>0x8004a029</codeph> error code returned on NetFlt
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| 20 | network component install, as follows:
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| 21 | </p>
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| 22 | <pre xml:space="preserve">VBoxNetCfgWinInstallComponent: Install failed, hr (0x8004a029)</pre>
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| 23 | <p>
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| 24 | You can try to increase the maximum filter count in the
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| 25 | Windows registry using the following key:
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| 26 | </p>
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| 27 | <pre xml:space="preserve">HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\MaxNumFilters</pre>
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| 28 | <p>
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| 29 | The maximum number allowed is 14. After a reboot, try to
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| 30 | reinstall Oracle VM VirtualBox.
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| 31 | </p>
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| 32 | </li>
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| 33 | <li>
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| 34 | <p>
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| 35 | The INF cache is corrupt. In this case, the install log at
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| 36 | <filepath>%windir%\inf\setupapi.dev.log</filepath> would
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| 37 | typically mention the failure to find a suitable driver
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| 38 | package for either the <userinput>sun_VBoxNetFlt</userinput> or
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| 39 | <userinput>sun_VBoxNetFltmp</userinput> components. The solution
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| 40 | then is to uninstall Oracle VM VirtualBox, remove the INF cache
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| 41 | (<filepath>%windir%\inf\INFCACHE.1</filepath>), reboot and
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| 42 | try to reinstall Oracle VM VirtualBox.
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| 43 | </p>
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| 44 | </li>
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| 45 | </ul>
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| 46 | </body>
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| 47 |
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| 48 | </topic>
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