# Let's encrypt certificate expired on desktop client

**URL:** <https://help.nextcloud.com/t/lets-encrypt-certificate-expired-on-desktop-client/124548>\
**Category:** 💻 Desktop\
**Tags:** reverseproxy\
**Created:** [September 30, 2021, 9:07am UTC](https://help.nextcloud.com/t/lets-encrypt-certificate-expired-on-desktop-client/124548 "2021-09-30T09:07:10Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![jotoeri](https://help.nextcloud.com/user_avatar/help.nextcloud.com/jotoeri/32/25461_2.png) [@jotoeri](https://help.nextcloud.com/u/jotoeri)\
**Post date:** [September 30, 2021, 7:23pm UTC](https://help.nextcloud.com/t/lets-encrypt-certificate-expired-on-desktop-client/124548/6 "2021-09-30T19:23:52Z")

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Certificate-Storage on Windows didn’t help for me, the App just reinstalled it. Update & Reboot on the Server helped for me… 😉

> [@Nextcloud App untrusted certificate, OK in browser](https://help.nextcloud.com/t/nextcloud-app-untrusted-certificate-ok-in-browser/124532/12):
>
> Hello, I’m having the same issue. I moved my reverse proxy on unraid from SWAG (which had no certificate problem) to Nginx Proxy Manager. I am using Lets Encrypt for my domain [nextcloud.server.com](http://nextcloud.server.com) and it works great on all browsers, but not the desktop apps. I get the same error you mentioned. I have never messed with certificates. I do not know where to find them to delete the old one. I’m using unraid 6.9.2 for my nextcloud. Any advice or directions would be appreciated. Thanks

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