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Every day at the same time, my internet dies for 1 minute. How do I investigate?

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Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?

#131

Post by barbarbar »

oxfeed65261 wrote: post #118
midasuni wrote: post #116

Earlier quoted context omitted.

Did you try saying shibboleet? https://xkcd.com/806/

c.f. Judges 12:5-6 ( https://www.bible.com/bible/114/JDG.12.5-6.NKJV ): > The Gileadites seized the fords of the Jordan before the Ephraimites arrived. And when any Ephraimite who escaped said, “Let me cross over,” the men of Gilead would say to him, “Are you an Ephraimite?” If he said, “No,” then they would say to him, “Then say, ‘Shibboleth’!” And he would say, “Sibboleth,” for he could not pronounce it right. Then…

Haha - This is and the comment above are awesome. But not really a backdoor.

Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?

#132

Post by rapjr9 »

dvcrn wrote: post #124

Not likely your issue but I had something similar that exactly every day my Wi-Fi would act up and my computer disconnect. It also happened to be the same time a nearby church starts ringing it's bells and my room happened to be very close to it. It also didn't happen on days the church didn't use the bells. Still don't know what exactly caused this and I don't live there anymore but because I was the only one in my…

A lot of church bells these days are not real bells, they are PA systems playing a recording of church bells. They are often programmable and wirelessly controlled, for example:

https://www.brgproducts.com/carillon_pricing/index.php

So it seems entirely possible the wireless part of the church bell system was interfering with your router. If the church did have real bells it seems very unlikely they would generate strong EM radiation at 2.4GHz or 5GHz. They might induce some vibration if they are really loud, which could trigger an intermittent connection in the router, though that seems pretty far fetched also.

Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?

#133

Post by m463 »

Triv888 wrote: post #104
Forbo wrote: post #80

Earlier quoted context omitted.

This assumes that the ISP has a short lived DHCP lease. Comcast Business once tried to charge me to roll my DHCP IP from them. They told me I would have to disconnect my equipment for three weeks for the lease to expire. I told them to go fuck themselves, got a minicipal fiber connection, and never looked back.

With Comcast, if I spoof my router's MAC address, I get a new IP instantly... otherwise it is basically static (residential service).

So does that mean they somehow detect the mac address has come from a new device and roll the ip address to prevent people from doing server kinds of things?

Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?

#134

Post by m463 »

eppp wrote: post #113
wernercd wrote: post #96

Earlier quoted context omitted.

There's a limited number of IPs so most homes CANT use static... we already don't have enough IPs for the mountains of devices. But the other part is money... why give something away for free when you can make it a "feature" to pay for? Tons of other reasons in various articles... https://www.online-tech-tips.com/computer-tips/ott-explains-... https://superuser.com/questions/590391/why-do-isps-change-yo...

I work at an ISP and setup both static and dhcp services. Statics take far more work and management than dhcp, ignoring the scarcity problem. We make you pay more because you are requesting something that requires both documentation and management on a home connection. Id be glad to give them away for free but it is all downside for us and over 99% of residential customers dont want one to start with. I think we have…

un-ignoring the scarcity problem, when I've gotten a static IP I would usually get a block of 8 and they would waste the 0 for network and 7 for broadcast. I've wondered why they didn't just give you 8 usable addresses.

(or if I set up my own router could I just use the all?)

Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?

#135

Post by samoa42 »

wruza wrote: post #99

Your ISP does that. Apart from IP rotation theory, I heard that some ISP billing software requires a session reset to flush network statistics to a billing database, because it is accumulated in RAM. They have to do that to block/divert clients whose account reaches a limit, because you don’t normally upload payment info to your firewall/proxy and only check it for new sessions. (I’m not an ISP guy and this may simpl…

> 1 minute may be a technical pppoe cleanup/reconnect timeout.

i'd second this guess because its a common setup. OP could check the external ip before/after the reconnection and verify this way if it changed.

would also be helpful to know connection technology (dsl/cable/wifi/fibre..) and name of the isp

Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?

#136

Post by Triv888 »

m463 wrote: post #133
Triv888 wrote: post #104

Earlier quoted context omitted.

With Comcast, if I spoof my router's MAC address, I get a new IP instantly... otherwise it is basically static (residential service).

So does that mean they somehow detect the mac address has come from a new device and roll the ip address to prevent people from doing server kinds of things?

I host servers on my home connection and never had issues (but I do use a dynamic dns service to make sure that I always have the correct IP)

Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?

#137

Post by nikau »

ksec wrote: post #93
igetspam wrote: post #88

Earlier quoted context omitted.

To get you to pay more money for a static IP.

Seems Reasonable, but I though most ISP dont want Home users to be using Static IPs. And apology for asking an off topic question. I guess that is what the downvotes are coming from.

Most ISPs are using carrier grade NAT (CGNAT), so most users are sharing IPs with other customers.

Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?

#138

Post by candiodari »

wruza wrote: post #99

Your ISP does that. Apart from IP rotation theory, I heard that some ISP billing software requires a session reset to flush network statistics to a billing database, because it is accumulated in RAM. They have to do that to block/divert clients whose account reaches a limit, because you don’t normally upload payment info to your firewall/proxy and only check it for new sessions. (I’m not an ISP guy and this may simpl…

If you want to confirm this, if you can pull the logs from your router you should be able to see this happen and getting log entries around that time.

Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?

#139

Post by JeremyNT »

nikau wrote: post #137
ksec wrote: post #93

Earlier quoted context omitted.

Seems Reasonable, but I though most ISP dont want Home users to be using Static IPs. And apology for asking an off topic question. I guess that is what the downvotes are coming from.

Most ISPs are using carrier grade NAT (CGNAT), so most users are sharing IPs with other customers.

Is there a citation for the "most" here? I understand this is true in some cases, but I've never used an ISP that does carrier grade NAT. I'm on Spectrum cable now, which is not exactly known for being a good ISP, and I have my own address.

Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?

#140

Post by 2rsf »

oger wrote: post #33

"My internet" is a bit vague - so I am making some assumptions here. Scenario (A) could be that your WiFi dies at a specific point in time. You might then want to look at some source of electromagnetic interference (like a motor starting while creating sparks). Scenario (B) could be that your internet service provider is cutting your connection and provides a new IP address - which is common for many xDSL providers.…

You don't need something fancy like motor sparks to kill a 2.4Ghz WiFi, a leaky Microwave will do that and perfectly explain the 1 minute length.

Switching to 5Ghz will help if this is the case

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