Flint 2 (4.8.2) AdGuard Home dns proxy

[will.qiu]

Please refer to our reply in the original post.

Flint 2 MT6000 Rolling back from 4.8.2 to 4.7.7 causing internet outage

Hi The feature to preserve configurations during downgrades is not yet fully supported in the current version and may cause some issues. We have submitted this requirement to the development team and hope to see improvements in future releases. For now, you can use Luci to back up the current version's configuration, then perform a configuration-preserving upgrade to the new version. If you encounter any problems, you can roll back to the previous version without preserving configurations an…