D-Link Forums

The Graveyard - Products No Longer Supported => D-Link Multimedia and USB => DSM-750 => Topic started by: mikec5867 on August 01, 2010, 06:48:22 AM

Title: Invalid Device Certificate when connecting to Win 7
Post by: mikec5867 on August 01, 2010, 06:48:22 AM

I have been trying to add the DSM750 (firmware 1.02) to two different computers, one running Windows 7 Ultimate and another running Windows 7 Home Premium using the Windows Media Center interface.  After entering the eight digit sync code, Windows states "The Device certificate on your extender is invalid.  Please contact the extender manufacturer..."

I tried first on the computer running Win7 Ultimate and received the error. I then went to a laptop running Win7 Home Premium and had the same error occur. So, this is obviously a device issue. How do we update the device certificate?

Title: Re: Invalid Device Certificate when connecting to Win 7
Post by: mikec5867 on August 03, 2010, 05:37:43 PM

Does anyone from DLink bother to read these forums anymore??

Title: Re: Invalid Device Certificate when connecting to Win 7
Post by: fly on August 06, 2010, 05:12:04 AM

I hate to say it, I think this product has been abandoned for the the Boxee.

http://www.boxee.tv/box

Good luck with it too. I just started using a small laptop with an HDMI port. I does everything the 750 does and better.

http://www.frys.com/product/6276060?site=sr:SEARCH:MAIN_RSLT_PG

Title: Re: Invalid Device Certificate when connecting to Win 7
Post by: ECF on August 09, 2010, 12:28:20 PM

The device certificate can only be updated by the manufacturer. Did you recently purchase this unit new?

Title: Re: Invalid Device Certificate when connecting to Win 7
Post by: mikec5867 on August 14, 2010, 04:23:36 AM

No, I have had it for several years. There was no manufacturing date on the back that I could find, but one of the labels said it was hardware version A1.

Isn't D-Link the manufacturer? How will you go about updating the device for Windows 7?

Title: Re: Invalid Device Certificate when connecting to Win 7
Post by: ECF on August 16, 2010, 03:46:30 PM

Yes D-link is the manufacture but there is no update for Windows7. The DSM-750 already works fine in Windows7. Did you have this setup as an extender in Windows Vista previously? Have you tried contacting technical support at all?

Title: Re: Invalid Device Certificate when connecting to Win 7
Post by: mikec5867 on August 17, 2010, 07:43:24 PM

Well, I would have to take issue with the statement that the DSM-750 works fine with Windows 7. If it did, I wouldn't be having a problem.

To answer your questions, I never used Vista. Our computers went from XP to Win7. I haven't called the tech support number, but I thought *this* forum was a tech support board.

The setup of an extender is just about as simple as MS could make it. It fails when retrieving information from *your* product. What is the fix?