# Unable to verify the certificate chain of trust

**URL:** <https://forum.inductiveautomation.com/t/unable-to-verify-the-certificate-chain-of-trust/77180>\
**Category:** Ignition\
**Created:** [August 1, 2023, 2:25am UTC](https://forum.inductiveautomation.com/t/unable-to-verify-the-certificate-chain-of-trust/77180 "2023-08-01T02:25:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![John\_Lee](https://avatars.discourse-cdn.com/v4/letter/j/34f0e0/32.png) [@John\_Lee](https://forum.inductiveautomation.com/u/John_Lee)\
**Post date:** [August 1, 2023, 2:25am UTC](https://forum.inductiveautomation.com/t/unable-to-verify-the-certificate-chain-of-trust/77180/1 "2023-08-01T02:25:55Z")

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Hi, why below error message shows when config the web server ssl certificate?

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/c/5/c5f86e70dd7d532f3c9da428345b6fb79fde1eea.png)  
I created Server Certificate by my own CA certificate(self singed?), but when I drag and drop the CA certificate(der encoded) to the upload box, it shows me that error. I don't have the certificate chain bundle file, I just have the CA certificate, and the Server Certificate signed by the CA certificate directly.