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I have a bot I want to host on premise and I've hosted the bot on a domain with a valid SSL cert via letsencrypt. The cert bound to the domain the bot is hosted on is by IdenTrust (DST Root CA X3) which is a participant of the Microsoft root certification program.

The DB the bot is connected to is the local database in the server. However, the domain the bot is hosted on is accessible via web call. The db can also be accessed via another application hosted under the same site the bot is hosted on.

However, I can't access the bot and I keep getting the error below: [There was an error sending this message to your bot: HTTP status code InternalServerError]

Please help! Thanks!

Eugene Tan
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    Possible duplicate of [Bot Framework without Azure possible?](https://stackoverflow.com/questions/40888489/bot-framework-without-azure-possible) – Ezequiel Jadib Sep 29 '17 at 10:01
  • Internal Server Error generally means there is an issue in the bot code. Are you 100% certain that the bot is not being reached? Can you navigate to the Messaging Endpoint in a browser? It should return: 'The requested resource does not support http method 'GET'." if hosted in IIS. – Eric Dahlvang Sep 29 '17 at 19:20
  • @EricDahlvang hey man, yes the endpoint is returning the message string u said! – Eugene Tan Sep 30 '17 at 05:31
  • LetsEncrypt does not appear to be one of Microsoft's Trusted Root Certificate Program Participants: https://social.technet.microsoft.com/wiki/contents/articles/31634.microsoft-trusted-root-certificate-program-participants.aspx – Eric Dahlvang Oct 02 '17 at 21:08
  • Hey @EricDahlvang, turns out it was a port exposure issue and not the SSL cert itself! Thank you so much for the help! :) – Eugene Tan Nov 01 '17 at 06:55

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Webchat client talks to Azure MS bot through Directline API which is hosted in Azure-cloud. You need to find a way to talk to local MS bot through DirectLine API. Sadly, I don't think if there is any local(on premise) version of DirectLine API.

Ratnakar Chinchkar
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