I found that logging into the cable modem itself and getting the signal levels and modem event logs helps. The poster seems to just be logging IP reachability. You have to keep repeating that modem logs show the problem is outside of my house until they send a technician. Then you hope the tech knows what he is doing enough to verify the issue and call the right person.
It took about 2 months and 5 visits to get my outages fixed. I also had to get some of my neighbors to report the outages.
What used to be very useful was to get the signal to noise ratio. When I had problems it was because they had installed amplifiers at various parts of the line and it eventually added up to a problem with amplifying too much noise.
gotta ask, just because i went through this with spectrum recently.
have you grabbed an extension cord and tried connecting the modem outside at the drop for awhile?
i hear you that your neighbor has the same issue. but if youre in. say a development by the same builder, or were all part of a comcast upgrade at roughly the same time ..
and well… you both recently upgraded to 1.2(?) because that would be the latter case
after my gig upgrade and a few tech visits i ended up finding a splitter that only goes up to 800mhz or so (if that) inside a wallplate.
TLDR:
you might have a 5-1000mhz splitter. thats widely used by comcast still.
MORE:
OFDM is 1008mhz or so and you wouldnt notice the problem under, or maybe just UP TO gigabyte speeds (eg: downgrading to 500mb might mysteriously “fix” it).
but you WILL notice this at 1.2gb.
spectrum is future proofing and using 5-2500mhz splitters
ANECODTAL:
my modem locked with the 800mhz splitter, but it dropped , cycled and had horrible upload speeds.
techs never tried or thought of this . the final boss tech took photos and even took the splitter back to show his boss. i guess multiple units had tickets after the gig upgrade and they had an “aha” moment.
TECHNICAL:
i would expect something more like multiplexing errors in this situation. forgive me because im 20 years out of the game (was an RF/install tech on analog CATV , and cable modems when those were brand new to Charter) and had to look it up but i think docsis 3.1 is dependent on 957–1151 MHz or 1008–1152 MHz
its that 1008+mhz where now your splitter is acting like a 5-1000mhz filter.
its not perfect like okay maybe 4-1003mhz gets through the filter maybe even more permissive if its a cheap one. but thats NOT a clean signal for that frequency band its more like bleed-through.
sort of similar to traps (the little barrels theyd screw onto your line to block you from getting pay channels in the olden days) and how you STILL could sort of see and hear. a little bit of what was going on on cinemax at 3am and at least get the IDEA. :>
This seems pretty likely, but shouldn't a tech roll have included sampling the signal strength/snr at these frequencies? Or would the tech tools be likely to be on old frequencies too?
Tech should plug the meter into where the modem is too, though, right? And if the SNR looks good at the dmarc and not at the modem, there's your problem... Tech can peace out if you don't have inside line coverage.
I had an old 15+ year old line when I moved in. Helped my neighbor cut a few hundred of his monthly by getting xfinity and they ran a brand new drop for him. Then just recently they "upgraded" my line. But I don't have any splitter or filter its just a connector with a ground that attaches my home cable to the drop cable.
the reason id suggested connecting your modem at the outside drop would also cover any and all inside wiring issues. and that could be anything. frayed end. a nail through it. moisture.
i think my inside wiring was done no earlier than 1991 , but maybe redone once since then and it looked pretty good but i found this on the back of a wallplate , just yesterday:
the easiest thing to do is check it at the box and then if nothing else thats ammo for dealing with customer service “look, i connected at the drop and have the same issue its NOT my inside wiring.”
everything from that point back is their problem and they owe you bill credits until its fixed, so get the proof and go back with it.
in my case my modem worked perfectly at the drop :D so i unfortunately had some digging to do
its not practical to suggest someone on the internet go ripping open all their wall plates and checking every inch of inside wire or maybe even running a new one. unless it passes the drop test, and then yeah, thats what needs to be done.
but plugging into the drop will 100% prove whose problem this is. youre california so thats also good ammo for a PUC complaint, that you did that and proved its not your inside wiring and now theyre refusing to deal with it. maybe that will get it to the right person on comcasts end faster when they review it.
Not just social media postings but past real estate listings can probably provide floor plans.
And if you don't have those, a lot of buildings have common patterns. Its very much in the realm of possibility to train a model using exterior and interior information so that you could have AI generate a floor plan using only exterior data.
Combine that with a small drone that could fly around a building and take different wifi signal readings to triangulate access point positions.
Once you have all that don't you have everything you need to detect movement in the building based on signal disruptions?
Yes, seems like a bit of work but it absolutely seems like the type of effort some governments would put effort into.
> Not just social media postings but past real estate listings can probably provide floor plans.
I regret even engaging with the floor plan debate.
It doesn’t matter if they have a floor plan. That’s not enough information to characterize the RF environment of a house and how it responds to people moving through it.
A floor plan won’t tell you the position of all the WiFi devices, obstructions, and how the environment responds to moving those around. It won’t even tell you where the router is with any precision or if it’s next to a big chunk of metal like a computer case that’s blocking half the house and causing reflections.
>Combine that with a small drone that could fly around a building and take different wifi signal readings to triangulate access point positions.
That seems like all you'd need anyway, skip the rest of this. Small autonomous drones with simultaneous location and mapping capability will absolutely revolutionize warfare (and firefighting, but I digress) whenever they stop being sci-fi.
Its not the the data is only cached by Cloudflare in one place, its that it is cached at the edge node nearest to the user that last made the request. Geographically different users will likely hit a completely different edge node that needs to hit your origin to populate its cache.
Cloudflare has a free tiered caching option that helped my site. Instead of cache missing on local edge nodes always having to hit the origin, the edge node can sometimes pull the data from another Cloudflare server. It reduced load on my origin.
Agree with needing to tune and validate caching, one of the biggest changes my PHP site was tuning apc/OPcache sizes.
Cloudflare will actually slow down TTFB for small, less popular sites since they don't maintain a keepalive connection to the origin. This means you pay an additional TCP/TLS setup cost from the Cloudflare POP to the origin which is worse than a direct connection. I also tried testing a smart-placed worker and cloudflared, neither of which seemed to help.
Depends on the amount of data/assets. With all the AI bots its easy for (default) caches to be undersized since sites no longer have most frequently accessed URLs, every URL (and query param combo) ends up being frequently accessed.
I have Sony Bravia TV that has Android TV so I went looking for the docs to confirm you can enable developer mode, access adb, and sideload apps. While looking at the docs I discovered I can load HTML5 apps from USB! I never knew that but I'm going to do some experimentation in the near future.
It’s difficult to do better than Sony for an Android TV. Their Android build is one of the most junk-free out there. The newer ones can also use their internal speakers as a center channel when external stereo speakers are hooked up (giving dialogue a boost) which is pretty cool.
I use mine as a dumb TV but the built-in smarts are serviceable.
YMMV. it's never worked well for me. works great for the first week, then it stops connecting or i suddenly have several zombie bravia devices, all of which aren't connected.
best thing i ever did with my bravia was install a custom launcher via adb to finally rid myself of the endless ads, upsetting news, and terrible suggestions constantly shoved in my face without my consent. nice to be able to uninstall the misc bloat that you can't get to with the gui and just have a simple interface. all i want is to access jellyfin and maybe one or two other apps. much better all around experience now.
here's a nice reference for a lot of the stuff installed on bravia that you can elect to remove via adb:
OMG! thank you! I was unaware this was possible. I can't stand the fact that my expensive TV came with ads built-in. I use it in "only apps mode" so at least the only ad id showed is the top third of the screen one, but not the "recommended" content tiles. I'll do this instead once I go back home
Weak glutes are a common symptom from sitting too much and then other muscles around the hips compensate which causes multiple issues with hip tilt and gait.
I'm not autistic and social interactions are incredibly energy draining for me. Granted I'm quite an introverted person, but not having autism doesn't mean you get pumped up from being around people.
It took about 2 months and 5 visits to get my outages fixed. I also had to get some of my neighbors to report the outages.
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