Flint Router: Error -3, the online upgrade is abnormal

Got a weird error message when going to the upgrade tab.

Hello, will this problem still occur if you turn off the VPN?

I decided to just rollback to 4.4.6 because I have been having nothing but problems with every firmware post this update. The biggest issue is that my SQM no longer loads after reboot past 4.4.6 firmware. I've tried adding the to init code but it doesn't work. Frustrating because it is dangerous not having any firmware updates.

Hello, you can try using the methods in this link to solve the SQM issue. GL-MT6000 Flint 2 - SQM not shaping upload speed after a reboot - #56 by ywp

I had the same error message upgrading from Non-OP24 4.6.2 keeping my settings. The error disappeared when I reset the router and started from scratch with settings.

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It should be a bug brought by update with kept settings.