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"all better"
Details:
"Did you try turning it off and on again?"
Yes, the (more/most) "usual suspect" - the DSL modem ... power cycled it and all is well again (until it does it again ... does it rather randomly, but on average about once a month or so). I may try substituting another one in the not-too-distant-future ... but since issue is intermittent, may not know if such a swapping of hardware makes - or statistically probably makes - for an improved situation for some while. I do also have a nearly identical DSL modem (same make and model) ... it also has same intermittent issue at about the same frequency of occurrence - that's also including with it's own separate matched power supply ... slightly different firmware version, but otherwise those two DSL modems (and their power supplies) quite highly matched, and ... same intermittent issue.
And yes, good to have logs (as in hand logged and backed up data - in form that's fairly easy to access even if system(s) are down) ... that, among other things, give me good history of this intermittent issue (and what's been tried, and not, and results observed).
From: "Michael Paoli" Michael.Paoli@cal.berkeley.edu Subject: (temporarily) down: SF-LUG (but lists up) ... likewise some BALUG bits down ... Date: Tue, 22 Mar 2016 15:14:20 -0700
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FYI, I noticed short bit ago (they were up and online earlier today), that offline are:
SF-LUG: ([www.]sf-lug.{org,com,info}), etc. but lists remain up and on-line
also BALUG on-line: [www.]balug.org & lists, all other balug bits (e.g. wiki, archive other than list archive, etc.) still presently off-line.
I expect to have more information (and hopefully have whatever is the issue corrected) by later this evening or so.
(POTS line appears operational, but not reaching the subnet via DSL - I'll know more when I'm on-site again).