The Lance J. Technoweb

I often find it challenging to find specific Xfinity web pages used manage my Internet service. Here is the list of URLs that I am often struggling to find. Status, and Remotely restarting the modem      https://www.xfinity.com/support/status      Under "Internet", there should be a Cable Modem entry that says "Connected" and which has a Restart button.   Monthly Data Usage      https://customer.xfinity.com/#/devices#usage Also in JSON form at       https://customer.xfinity.com/apis/csp/account/me/services/internet/usage?filter=internet Hotspot List      https://customer.xfinity.com/#/settings/security/hotspot-devices Speed Testing This is my go-to speed testing service.  It provides a lot of great information.  It isn't a Comcast service, but it does a great job.      https://speed.cloudflare.com/       

As of this writing in the US and Canada, there are exactly 238 "Daylight Saving Time" days per year, and 127 "Standard Time" days per year.  We change our local clocks twice a year, in March and November. Very early or very late sunrises mess up a lot of people, as does the clock change. Many people in the US would like to both eliminate the clock changes and shift their time zone. People in the areas that have very late sunrises effectively want to shift the timezone boundary to the west.  This includes states like Michigan, Indiana, and Georgia, which are inadvertently in the Eastern Time Zone.  Instead, many people in these states would greatly prefer to follow the clock of the Central time zone. Similarly, many people in the areas that have very early sunrises would want to shift their timezone boundry to the east.  This includes the Northeast, which could move to the Atlantic time zone. Many states have already voted for these changes, but it takes an act of co...

I have a couple Brother HL-3170CDW color laser printers.  They're pretty old, circa 2015.  One is working fine, and the other is dead with a laser-related issue and is being slowly scavenged for parts. In any case, these machines have firmware that needs to be periodically updated.  There are two chucks of firmware for this printer: Main Firmware Version and Sub1 Firmware Version . As of this writing, on 10-March-2024, the firmware versions are as follows: MAIN FIRMWARE is at 1.32  SUB1 FIRMWARE is at 1.07 A printer's version information can be seen by looking at http://{printer_ip}/general/information.html Updating the Firmware Unfortunately, the HL-3170CDW printer does not offer a built-in UI to deal with firmware updates.  Instead, the Brother Firmware Update Tool must be used to keep the printer's firmware up to date.  The tool can be found at The Brother HL3170cdw web page.   It can be found under Windows and Macintosh downloads. Note that the u...

I frequently read about how Puma-based DOCSIS modems have severe latency problems.  Back in 2016, a user on DSL Reports who states that he is an "EE" that "designs electronics" did an analysis and claimed that he found very frequent and repeatable ~250 ms latency spikes due to his modem's Puma chipset.  (It is important to note that this person did not claim to have any professional or academic credentials in networking.) The data he published - a repeatable and consistent 250 ms latency - seems so bizarre that I found it almost impossible to fathom that his findings were typical behavior, or that ISPs would certify such poorly behaving modems. Later in 2016, an article was published that amplified his claims and his story took off as "the experience of everyone with a Puma-based modem". By April 2017, another article was published in The Register stating that someone was pursuing a class action lawsuit against Arris related to Puma-based modems. [T...