As TMG RTM is very close, the amount of downloads for TMG Beta 3 is growing and with that, some users are facing some issues while trying to install TMG Beta 3. This one in particular refers to an error trying to check domain membership while installing ADLS and if you open the file %windir%\temp\ ISAADAM_INSTALL_XXX.log you might see the following error:
adamsetup 7E4.BEC 0163 10:05:53.536 Enter CheckServiceSecurity
adamsetup 7E4.BEC 0164 10:05:53.536 Enter InitSecWinntAuthIdentity
adamsetup 7E4.BEC 0165 10:05:53.536 Enter State::GetOperation UNIQUE
adamsetup 7E4.BEC 0166 10:05:53.957 Enter State::GetOperation UNIQUE
adamsetup 7E4.BEC 0167 10:05:53.957 NtdsAdamValidateServiceAccount() => 1789
adamsetup 7E4.BEC 0168 10:05:53.957 info.eValidationResult = 0
adamsetup 7E4.BEC 0169 10:05:53.957 Enter GetErrorMessage 800706FD
adamsetup 7E4.BEC 016A 10:05:53.957 ADAMERR_OK
adamsetup 7E4.BEC 016B 10:05:53.957 AD LDS Setup was unable to validate the selected service account.
Error code: 0x800706fd
The trust relationship between this workstation and the primary domain failed.
adamsetup 7E4.BEC 016C 10:05:53.957 ADAMERR_OK
adamsetup 7E4.BEC 016D 10:05:53.957 Enter Feedback::ShowMessage AD LDS Setup was unable to validate the selected service account.
Also, keep in mind that if you are trying to install TMG Beta 3 on Windows Server 2008 R2 it might not install or it might install and do not work properly, the reason why is because TMG Beta 3 was not projected to run on Windows Server 2008 R2 therefore is not supported (for this release – Beta 3). Don’t worry, by TMG RTM version we will be fine with that, however if you want to play with TMG Beta 3 now make sure to install Windows Server 2008 version (no R2).If you are indeed using Windows Server 2008 (only) and you are receive this error on the log, than go ahead and start troubleshooting domain membership problems, secure channel, RPC, etc…you know the drill J.
If you need to discuss technical issues about TMG Beta 3, Microsoft has an open forum for that on the link below: