In my other XPS 13 DE Settings post, I linked to an article about mouse lag that helped my Microsoft 3600 mouse behave better.

Last week I noticed it started acting up again ๐Ÿ˜” so I revisited the problem. My previous settings had apparently been wiped out with my upgrade to Ubuntu 20.04. But in my search I found some other settings that might help.

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Configuring E911 support with Skyetel is simple on their side, as it should be. But because it’s an emergency service, I wanted to do a separate post to underscore the importance on making sure it works.

I mostly followed this support article from Skyetel: https://support.skyetel.com/hc/en-us/articles/360041179233-E911 except I went in reverse order…

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My network topology at home is pretty simple, it looks like this:

After my recent router hardware and OpenWrt 19.07 firmware upgrades, I noticed my access point connected to my cable modem looked like this on the Status Overview page:

Pro-tip: Notice I’m using the cloudflare DNS servers rather than the ISP-provided ones. The Comcast DNS servers have gone down on me before and their performance is generally lacking.

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I wrote earlier about how I had to do some configuration of my DNS to get dnsmasq and resolved to work well together. With it working well I’m able to use dnsmasq, resolved, and network manager together to do local development while also detecting network changes nicely.

Recently I noticed I would occasionally get the dreaded question-mark network icon: “?” I did some digging around and it was related to Ubuntu’s Network Connectivity check. Several posts out there simply say to disable the check by going to Settings -> Privacy and turning Connectivity Checking to “Off.”

But by disabling connectivity checking, I don’t get the automatic prompt to connect through a captive portal (like at my local library). I wanted to actually fix the problem, so I needed to understand what the problem was.

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After setting up my new OpenWrt router, it is time to get my local phone number that I ported from Google Voice to Skyetel working.

Most of the configuration follows this Nerdvittles Skyetel post, but I include some specifics and screenshots for my configuration using OpenWrt, IncrediblePBX on Raspberry Pi, and a Linksys RTP-300 analog telephone adapter.

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