Changes between Version 10 and Version 11 of ManagingWindowsTAPDrivers


Ignore:
Timestamp:
12/02/13 09:32:39 (10 years ago)
Author:
Samuli Seppänen
Comment:

Added information about debugging tap-windows installation issues

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  • ManagingWindowsTAPDrivers

    v10 v11  
     1[[TOC(inline, depth=1)]]
     2
    13= Introduction =
    24
     
    101103
    102104Look at [wiki:TapRenameScript this page] for a script that can be used to rename TAP-drivers.
     105
     106= Debugging installation problems =
     107
     108People occasionally report tap-windows installation issues, assuming they are all caused by a single bug, because ''devcon.exe'' gives the same error message/code. This is unfortunately not the case, and the reason for a install failure could be:
     109
     110* Lack of privileges for installing the driver(?)
     111* Broken driver
     112* Invalid driver signature
     113* Expired driver signature
     114* Conflicting drivers: pretty much every OpenVPN-based VPN service has it's own Windows client installer, which install some version of the tap-windows driver. If the installers do a bad job, they could end up installing tap-windows drivers that conflict with the official OpenVPN tap-windows drivers.
     115* Something else
     116
     117In case you have tap-windows installation issues, you should try the following:
     118
     1191. Back up all OpenVPN configuration files, both for official and for unofficial OpenVPN Windows installers
     1201. Uninstall the [http://openvpn.net/index.php/download/community-downloads.html official OpenVPN Windows client]
     1211. Uninstall any unofficial OpenVPN Windows clients you might have
     122 * Note that many of these are not called OpenVPN at all
     1231. Remove all instances of tap-windows drivers, if possible
     124 * Note that many of these are not called tap-windows at all
     1251. Reboot
     1261. Try installing OpenVPN using the official installer
     127
     128If you're still having issues installing the tap-windows driver, you should try installing it on another computer. If installation to another computer works, it's highly likely the problem is in your system, not in the OpenVPN/tap-windows installer itself.