[Sephiroth]

VM, as you've seen, are aware of a firmware issue that causes the SH to reset to default values when in router mode.

My engoneer's mnd tells me that where there are similar cases, one should compare production batches. If somwthing's mis-tooled, yoiu can imagine a dry joint that expands to work by day and glitch when the house cools down. Something like that. But that's musing and too much to hope for.

If there is no prodiction fault, then in modem mode, it doesn't happen unless there is a line condition and then the SH won't go to default settings. That much is clear from the VM forum (as I see it) and my own case and various other specific people have commentted likewise.

The one thing I do recommend is that you stay in modem mde with your own router. I don't think that VM/Netgear will sort oit the router mode problems any time soon.