We've had an R11.0 system with about 4 or 5 DS30's that seems to randomly develop "bad ports" over the last 6 years. We usually move the extension to a completely different module and the issue goes away, but it seems like a bit of a "whack-a-mole" problem. I'm pretty sure some of the so-called bad ports start working again later - possibly after a module reboot or something.

Not much help, I know...

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