# Windows Nextcloud sync error(self-signed cert in chain)

**URL:** <https://discourse.joplinapp.org/t/windows-nextcloud-sync-error-self-signed-cert-in-chain/6766>\
**Category:** Support\
**Created:** [9 March 2020 16:14 UTC](https://discourse.joplinapp.org/t/windows-nextcloud-sync-error-self-signed-cert-in-chain/6766 "2020-03-09T16:14:53Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![dpoulton](https://yyz2.discourse-cdn.com/flex028/user_avatar/discourse.joplinapp.org/dpoulton/32/29723_2.png) [@dpoulton](https://discourse.joplinapp.org/u/dpoulton)\
**Post date:** [9 March 2020 16:26 UTC](https://discourse.joplinapp.org/t/windows-nextcloud-sync-error-self-signed-cert-in-chain/6766/2 "2020-03-09T16:26:50Z")

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Welcome to the forum

Have you tried

**Options** \> **Synchronization** \> **Show Advanced Settings** \> **Ignore TLS certificate errors**

However you mention that it is a work computer so could your issue be related to this thread?

> [@Unable to check for update or sync - employer firewall?](https://discourse.joplinapp.org/t/unable-to-check-for-update-or-sync-employer-firewall/6397):
>
> I can sync files using OneDrive on iOS & personal Mac. Unable to sync Windows 10 PC at work, gives the following message when I check for update: request to [github url] failed, reason: unable to get local issuer certificate. And sync error messages like the one below consistently appear over the “synchronize” button in the bottom left corner: Last error: FetchError: request to [url] failed, reason: unable to get local issuer certificate /// Any suggestions or workarounds would be helpful. …

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_[View the full topic](https://discourse.joplinapp.org/t/windows-nextcloud-sync-error-self-signed-cert-in-chain/6766)._