Flyfox Posted May 2, 2017 Share Posted May 2, 2017 Hi, After a change from FSX to FSX-SE I tried to install the Lancair IV-P again, but without success. I permanently get the message window: "Validation failed: Server did not specify content length. Please..." in spite of correct Validation data (Order No., Order Date and Reg. Key). My order No. for this addon is FSS0096136. Any help would be highly appreciated. Link to comment Share on other sites More sharing options...
Flyfox Posted May 5, 2017 Author Share Posted May 5, 2017 Hi, Does anybody have experience with validation failure? I'd love to re-install the Lancair IV-P. Link to comment Share on other sites More sharing options...
Richard Lincoln Posted May 6, 2017 Share Posted May 6, 2017 Hi Flyfox, This is an answer to your ticket. Are you trying to install via a Dvd? Please read the two links I have attached. Also report back as to the outcome. Link to comment Share on other sites More sharing options...
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