Check this article. Might be some other faulty electrical device: https://www.ispreview.co.uk/index.php/2020/09/18-months-of-v...
Every day at the same time, my internet dies for 1 minute. How do I investigate?
41–50 of 141 posts
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#42At 3:39p, unplug your router and leave it unplugged for an hour, then plug it back in. If the outage then moves to 4:40p every day, it's a 24 hour IP address lease expiring.
Are you talking about IP leases from the router to the local network or IP leases from the ISP to the router?
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#43Did you check if your public IP changes after this minute? I don't know if this still happens but back in the past my router did this every 24h to get a new IP.
A lot of service providers do this because they do not want you to host static services from your "dynamic" home IP, as they are selling "business" lines with dedicated static IPs. Or at least they used to do this for that reason. By now it's just some thing a lot of ISP do. I have seen other possible explanations like ISP claiming this is a "security" feature because attackers cannot have permanent access without al…
If you can replace the ISP provided router with your own you should be able to renew the lease.
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#44Second possibility: Did you connect a Sonos Device to your router using ethernet? If so, does your Sonos send on the same wifi spectrum your router does? My Play:5 sent on channel 11, so did my router, mesh repeater could not send to base while all connections appeared to be just fine.
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#45Do you have xfinity by any chance? And are you using their x1 combination modem/router in bridge mode with custom (non-comcast) DNS settings? Because the exact same thing was happening to me at the exact same time. I’m no networking expert but when I checked the logs it seemed that every day Comcast would try to “fix” my (not broken) DNS settings. I had been using mullvad DNS and open DNS as backup but since switchin…
I have xfinity configured with custom DNS and used to have a somewhat similar problem. At the same time each day, DNS would stop working (but I could still reach plain IPs) for a couple minutes.
It went away after I called them and had them "de-provision" and "re-provision" my modem. Basically deleting it from their system and readding it. For whatever reason, whenever I'm having chronic comcast weirdness, having them do this solves it. It sucks that this is the way things are.
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#46Launch ´mtr google.com’ on one of your devices (preferably connected via Ethernet to your router) a few minutes before the cut off, and watch what happens when the cut occurs. It will show you exactly which equipment on the route starts dropping. Although I suspect your ISP has a 24h lease and your modem renegociates at 3:40 everyday
This is the correct answer. Although typically leases will attempt a renewal halfway through the lease time, so it would be a 48 hour lease.
As OP said, mtr will tell you where in the line it’s happening.
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#47This is most probably because you have dynamic IP address and your router resets at the same time every day to fetch new IP address.
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#48MY INTERNET HAS BEEN GOING OUT AT 3:40pm PT TOO! Sorry for the all caps. I just scrolled through my texts and saw the “internet out?” texts are at the same time. Hopefully that means it’s a provider issue behind us. Wonder what we have in common? - South Lake Tahoe, CA - Spectrum Gig internet - Asus Zenwifi mesh
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Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#49Maybe the router is using DFS channels and some radar station takes a reading at that time every day and forces your router to change channel on its 5GHz network.
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#50Probably not your issue: Internet: Old TV caused village broadband outages for 18 months
https://www.bbc.com/news/uk-wales-54239180