I had the same problem with and older Netgear router. It turned out to be a bug in the scheduling settings. It had the ability to disable network access between specific times on a daily schedule. The feature was enabled by default, but no times were set to disconnect. You'd think that would mean the connection would never go down, but a firmware update changed that. Every morning at ~3:00am the network would go down for 1 minute. Disabling the feature entirely resolved the problem.
Every day at the same time, my internet dies for 1 minute. How do I investigate?
101–110 of 141 posts
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#102Are you on a xDSL service of fibre?
On xDSL services, some monitored alarms may cause line problems when they "check in". In these cases an in-line DSL filter should do the trick.
Another possibility is that some modem/routers have a "self healing feature" that is just really a restart. See if there's anything like this in the admin/system part of the configuration settings.
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#103Go to 192.168.0.1, log into your router/modem and see if there's an admin "Event Log"...could find some answers there.
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#1041. Unplug your Router at some other time, for at least 5 minutes, long enough for your ISP to notice it's absence and give you a different IP address. If your 3:40 PM changes, it's the 24 hour expiration of your external IP. 2. Do a ping 8.8.8.8 from your Linux machine (Raspberry Pi) or ping -t 8.8.8.8 from windows, and watch what happens at 3:40 PM 3. As others have said, turn off uPnP
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).
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#105Maybe your ISP resets your external IP at that time.
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#106Change your DNS servers.. I use openDNS, but there are lots of other choices. If the Pi isn’t in use set it up as a Pi-hole (DNS server / ad blocker), so you’re not use your isp provided router for DNS.
DNS probably has nothing to do with disconnects, this kind of random suggestion unrelated to the problem always makes me think of the Futurama Robot Judge: https://www.youtube.com/watch?v=Jqn8HB2w2Fs (skip to 0:15 for the punchline) Or maybe it is related, in which case I'll eat at a hat.
I've had outages that were due to my ISP's DNS service going down... one of the reasons I started using OpenDNS.
I need to watch more Futurama. That was great!
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#107First step check if the external wan IP address has changed.
Second Check the logs of the pppoe daemon in your router. (If the router provides such logs).
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#1081. Unplug your Router at some other time, for at least 5 minutes, long enough for your ISP to notice it's absence and give you a different IP address. If your 3:40 PM changes, it's the 24 hour expiration of your external IP. 2. Do a ping 8.8.8.8 from your Linux machine (Raspberry Pi) or ping -t 8.8.8.8 from windows, and watch what happens at 3:40 PM 3. As others have said, turn off uPnP
A) There are a lot of potential hiccups with trying to get a new IP:
- Some ISPs assign statically (odd, but true) meaning you will always get the same public IP
- The DHCP lease time is different for many ISPs: 5min to weeks, meaning you’d have to be offline for at least that long in order to be assigned a new IP when connecting
- Some ISPs lease it to the modem and not the router or anything internal (does not apply to what you said, but another tactic: changing the MAC address)
B) OP asked how to investigate. If getting a new IP dodges the issue and it doesn’t happen again, then there’s basically zero chance that the actual cause will be known
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#109Sounds very regular, may be worth contacting your ISP to see if that is their maintainence period or any other regular operation they may perform.
I am with a broadband provider in the UK called Zen, at 23:15 every Sunday our PPPoE session is terminated, and it takes a couple of minutes before it successfully resumes. Occasionally it will happen mid-week, however still at 23:15. At one point I suspected the provided FRTIZBox router, however the problem persisted once we moved to an MT992 modem and a Unifi USG.
Re: Every day at the same time, my internet dies for 1 minute. How do I investigate?
#110We had this problem in our house and it turns out it's because I accidentally plugged the modem into one of those auto power switches meant for turning off lights periodically.