# Duplicati failed to connect Amazone s3 **URL:** \ **Category:** Uncategorized\ **Created:** [February 19, 2018, 1:51pm UTC](https://forum.duplicati.com/t/duplicati-failed-to-connect-amazone-s3/2568 "2018-02-19T13:51:30Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Sinsha](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/s/46a35a/32.png) [@Sinsha](https://forum.duplicati.com/u/Sinsha)\ **Post date:** [February 19, 2018, 1:51pm UTC](https://forum.duplicati.com/t/duplicati-failed-to-connect-amazone-s3/2568/1 "2018-02-19T13:51:30Z")
Hi, I got below error while configuring connection Amazone s3: Failed to connect: Invalid type System.Net.HttpWebRequest for instance field Amazon.Runtime.Internal.HttpRequest:\_request ---
**Author:** ![Sinsha](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/s/46a35a/32.png) [@Sinsha](https://forum.duplicati.com/u/Sinsha)\ **Post date:** [February 19, 2018, 1:52pm UTC](https://forum.duplicati.com/t/duplicati-failed-to-connect-amazone-s3/2568/2 "2018-02-19T13:52:41Z")
This is happened Ubuntu 16.04 Duplicati version : 2.0.2.1-1 ---
**Author:** ![Sinsha](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/s/46a35a/32.png) [@Sinsha](https://forum.duplicati.com/u/Sinsha)\ **Post date:** [February 20, 2018, 5:30am UTC](https://forum.duplicati.com/t/duplicati-failed-to-connect-amazone-s3/2568/3 "2018-02-20T05:30:56Z")
Not able to create backup/restore with Amazone s3 ---
**Author:** ![JonMikelV](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/j/439d5e/32.png) [@JonMikelV](https://forum.duplicati.com/u/JonMikelV)\ **Post date:** [February 22, 2018, 9:08pm UTC](https://forum.duplicati.com/t/duplicati-failed-to-connect-amazone-s3/2568/4 "2018-02-22T21:08:57Z")
That’s strange as a lot of other people have had no issues with S3. However, a search of the forum for `Amazon.Runtime.Internal.HttpRequest:_request` seems to indicate other users have run into the issue with S3 COMPATIBLE destinations (such as Minio). In at least one case, the solution was to set the `--allowed-ssl-versions` to `TLS12` for the specific job (apparently it didn’t help when setting globally). > [@Windows service + minio with ssl error](https://forum.duplicati.com/t/windows-service-minio-with-ssl-error/527/4): > > I figured this out, want to document it for the sake of others. Synopsis: When using Duplicati with a Windows service, have to specify TLS12 at the job level in order to work with Minio. Setting at a global level does not appear to take. It did automagically work when I was using it as a desktop application instead of a Windows service, but I probably won’t have time to reproduce with a new system to determine the difference. Details: I used ssldump on my minio server to capture packets. 1… Can you try that out and see if it helps? ---
**Author:** ![Sinsha](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/s/46a35a/32.png) [@Sinsha](https://forum.duplicati.com/u/Sinsha)\ **Post date:** [February 22, 2018, 9:47pm UTC](https://forum.duplicati.com/t/duplicati-failed-to-connect-amazone-s3/2568/5 "2018-02-22T21:47:57Z")
Thanks for reply back. Somehow this was my software update issue in my system. ca-certificates-mono was not updated. Below commands solved my issue sudo apt get update sudo apt-get install ca-certificates-mono ---
**Author:** ![JonMikelV](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/j/439d5e/32.png) [@JonMikelV](https://forum.duplicati.com/u/JonMikelV)\ **Post date:** [February 22, 2018, 9:52pm UTC](https://forum.duplicati.com/t/duplicati-failed-to-connect-amazone-s3/2568/6 "2018-02-22T21:52:32Z")
Glad to hear you got it working! The certificates issue with mono is not uncommon, though usually I think it has a different error attached to it or I might have suggested that fix sooner. 😊 (Oh, I went ahead and your post as the solution in case others get the same error.)