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Matthias Goelke

License Error 100! Hardware or Software of this PC was modified!

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The license file is based among others on the LAN card ID, i.e. if you switch from LAN to WLAN (or vice versa depending which LAN card has been active when creating the License.dat file) the license is no longer valid and you get the mentioned error.


Please disable the media sense in order to keep the LAN card active when WLAN is enabled.

Under Windows8 this can be done by the following steps:

1)     Click on the Start button.

2)     Type cmd in the search bar.

3)     Right click on the cmd.exe and select Run as Administrator.

4)     Run the following commands one by one:

netsh interface ipv4 set global dhcpmediasense=disabled

netsh interface ipv6 set global dhcpmediasense=disabled

5)     After finishing the commands above, please run the following commands to check the results:

netsh interface ipv4 show global

netsh interface ipv6 show global

Please check if the entry “DHCP Media Sense” shows disabled or not. If it is disabled, it means the operations are successful.

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