DropBox began retiring long-lived (no expiry) access tokens starting Sept 30, 2021 in favor of short-lived tokens and refresh tokens.
With this change, we have opened GIT case JB4-#1847 to address this issue and released a patch and updated instructions to support DropBox authentication via refresh tokens. Please follow the instructions below to apply this patch on your JetBackup 4 Installation:
cd / && curl -L http://repo.jetlicense.com/patches/jetbackup4/issue-JB1847.tar.gz > jb4-issue1847patch.tag.gz && tar -xzf jb4-issue1847patch.tag.gz
echo "0 * * * * root /usr/local/jetapps/usr/bin/dropbox-cron > /dev/null 2>&1" >> /etc/cron.d/jetbackup
Continue with the steps below if you already have a DropBox Destination Configured in JetBackup
https://auth.jetbackup.com/dropbox/
under Redirect URIs then click Add.NOTE: If you are not redirected to auth.jetbackup.com for the access code OR receive a "redirect URI mismatch" error, try refreshing the page with Cntrl+F5 to clear the browser cache.
JetBackup will now be able to refresh tokens automatically and allow you to continue using DropBox.
Our apologies for the inconvenience caused and thank you for your understanding regarding this matter.