Well, the problem with my internet, that I Ranted and Grred and in general was a daily thorn in Cox’s side about, is now resolved.<\/p>\n
The resolution isn’t due to anything Cox did.. it’s due to a relay on my UPS.<\/p>\n
I had noticed that my UPS often made clicking noises, but I hadn’t really thought much of it until I got a isolation transformer to try and solve a hum problem in my nearfield monitors. It happened to have a voltmeter on the front, and I happened to leave it plugged in long after it was determined that it didn’t solve the hum problem. And I noticed that every click corrisponded to a 15 volt dip in the line voltage that only lasted a tenth of a second or so, and was followed by a 15 volt spike. (or so)<\/p>\n
At some point today, I got annoyed enough about this (because each line voltage dip also made a slight humming noise in my new monitors) that I gave the power company a call. I kind of figured they’d blow me off, since they are after all delivering power to me, but no.. they promised they’d send a tech out tonight.<\/p>\n
I had to go out to go shopping, but when I got back, the power to the house had clearly been interrupted, and it no longer fluctuates at all.<\/p>\n
And, mysteriously, my internet connection no longer has 900ms ping times to the default gateway, and is now capable of moving many megabits with aboslutely no trouble at all.<\/p>\n
Could these two things be connected? Well, consider this – the cable modem does NOT have a switchmode power supply, and any common mode noise getting into the cable modem’s power might very well find its way out the RF jack..<\/p>\n
I feel really bad that I harrassed Cox so mercilessly. Although – any of their techs that came out could have stuck a voltmeter on the line and seen the noise in question. But, it is probably generally true that their problems don’t turn out to be power-supply related, so I really can’t blame them for not being able to diagnose this one.<\/p>\n","protected":false},"excerpt":{"rendered":"
Well, the problem with my internet, that I Ranted and Grred and in general was a daily thorn in Cox’s side about, is now resolved. The resolution isn’t due to anything Cox did.. it’s due to a relay on my UPS. I had noticed that my UPS often made clicking noises, but I hadn’t really […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/posts\/1811"}],"collection":[{"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/comments?post=1811"}],"version-history":[{"count":0,"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/posts\/1811\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/media?parent=1811"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/categories?post=1811"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/tags?post=1811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}