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What was my syncing error?

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I installed MF on laptop A and attempted to sync on laptop B, but the password didn't work on B. I reset it, then the new one failed on A! Should I start from scratch? Thanks.

I installed MF on laptop A and attempted to sync on laptop B, but the password didn't work on B. I reset it, then the new one failed on A! Should I start from scratch? Thanks.

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If you reset your password, it makes sense you would need to log back in on your first system, but I don't understand why it didn't work. It's the same account...