Strange, Recurring Router Reset When Connected by LAN
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Hello everybody, It's my first question in 2022, so "happy new year" to all! I encounter a strange effect and really need an idea on how to find what is exactly happening and how to resolve the problem. Everything went perfectly fine in the exact same setup (as described in the following) before I moved house (coming from less than 1 mile away) a few months ago... Whilst other devices use WiFi to connect to my private WLAN, one of the desktops is supposed to use maximum speed (72 Mbps download) and bandwidth via a CAT-5 LAN cable. The router is a standard model of the provider and has been exchanged already, the desktop is running Windows 10 and permanently updated. In addition, I updated all the device drivers using the "Avast Driver Updater" software. What happens is that the Router (given it's connected via LAN) disconnects and reboots approximately every 1/2 hour. After approx. 1 minute it restarts (with the full procedure of lights blinking etc.), so that the interruption lasts around 2-3 minutes in total. For another 1/2 hour (this interval changes wildly, sometimes it is 1 hour, sometimes only 20 min or e.g. during the night even several hours) everything seems to be running normal with no indication of an error and at full speed. I've tried using 2 different LAN devices of the desktop computer (1 PCI-Express and a built-in Gigabit-device) and also all 4 different LAN inputs of the router. No change that I would have been able to observe. Since I couldn't resolve the problem, I'm currently using a WiFi stick which works perfectly but only makes 60% the speed (approx. 47 Mbps). Would someone please help me narrow down the error and/or give me hints on how/where I can find help on such a peculiar problem? Thank you very much in advance! Michael
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Hello everybody, It's my first question in 2022, so "happy new year" to all! I encounter a strange effect and really need an idea on how to find what is exactly happening and how to resolve the problem. Everything went perfectly fine in the exact same setup (as described in the following) before I moved house (coming from less than 1 mile away) a few months ago... Whilst other devices use WiFi to connect to my private WLAN, one of the desktops is supposed to use maximum speed (72 Mbps download) and bandwidth via a CAT-5 LAN cable. The router is a standard model of the provider and has been exchanged already, the desktop is running Windows 10 and permanently updated. In addition, I updated all the device drivers using the "Avast Driver Updater" software. What happens is that the Router (given it's connected via LAN) disconnects and reboots approximately every 1/2 hour. After approx. 1 minute it restarts (with the full procedure of lights blinking etc.), so that the interruption lasts around 2-3 minutes in total. For another 1/2 hour (this interval changes wildly, sometimes it is 1 hour, sometimes only 20 min or e.g. during the night even several hours) everything seems to be running normal with no indication of an error and at full speed. I've tried using 2 different LAN devices of the desktop computer (1 PCI-Express and a built-in Gigabit-device) and also all 4 different LAN inputs of the router. No change that I would have been able to observe. Since I couldn't resolve the problem, I'm currently using a WiFi stick which works perfectly but only makes 60% the speed (approx. 47 Mbps). Would someone please help me narrow down the error and/or give me hints on how/where I can find help on such a peculiar problem? Thank you very much in advance! Michael
If all of the lights on the cable modem go out and start blinking while coming back up, the problem is not inside your network, it's on the outside, from your modem out the pole. Have the cable company come out and replace the line from the pole to your cable modem.
Asking questions is a skill CodeProject Forum Guidelines Google: C# How to debug code Seriously, go read these articles.
Dave Kreskowiak -
If all of the lights on the cable modem go out and start blinking while coming back up, the problem is not inside your network, it's on the outside, from your modem out the pole. Have the cable company come out and replace the line from the pole to your cable modem.
Asking questions is a skill CodeProject Forum Guidelines Google: C# How to debug code Seriously, go read these articles.
Dave KreskowiakThank you, Dave. I'm afraid that, if you were right, the error would NOT only affect the desktop computer but rather all connected devices - which it doesn't. The router as well as all the cables and sockets were exchanged by the provider twice already – they even had engineers replace the outside lines from the house to the area's "exchange unit".
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Thank you, Dave. I'm afraid that, if you were right, the error would NOT only affect the desktop computer but rather all connected devices - which it doesn't. The router as well as all the cables and sockets were exchanged by the provider twice already – they even had engineers replace the outside lines from the house to the area's "exchange unit".
About the only other thing I can think of is changing the route of any LAN cables going to the router. One of more of them is picking up interference power lines in the house? Other than that, I can't think of anything else it could be.
Asking questions is a skill CodeProject Forum Guidelines Google: C# How to debug code Seriously, go read these articles.
Dave Kreskowiak -
About the only other thing I can think of is changing the route of any LAN cables going to the router. One of more of them is picking up interference power lines in the house? Other than that, I can't think of anything else it could be.
Asking questions is a skill CodeProject Forum Guidelines Google: C# How to debug code Seriously, go read these articles.
Dave KreskowiakThat would be possible – the (only) LAN cable is installed closely to an extension lead with 6 plugs... I'm gonna try to change that, test the function again over night and report. The idea would correlate with the fact that in the old house everything in that respect was absolutely fine. I read from what you write that there's no chance the computer (through the LAN sockets) would send anything (probably a test signal that could be misinterpreted) causing the router to re-boot. If I can drop this suspicion, I feel at least a little bit more on a track.
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That would be possible – the (only) LAN cable is installed closely to an extension lead with 6 plugs... I'm gonna try to change that, test the function again over night and report. The idea would correlate with the fact that in the old house everything in that respect was absolutely fine. I read from what you write that there's no chance the computer (through the LAN sockets) would send anything (probably a test signal that could be misinterpreted) causing the router to re-boot. If I can drop this suspicion, I feel at least a little bit more on a track.
There's no chance of a "test signal" screwing up the router.
Asking questions is a skill CodeProject Forum Guidelines Google: C# How to debug code Seriously, go read these articles.
Dave Kreskowiak -
Hello everybody, It's my first question in 2022, so "happy new year" to all! I encounter a strange effect and really need an idea on how to find what is exactly happening and how to resolve the problem. Everything went perfectly fine in the exact same setup (as described in the following) before I moved house (coming from less than 1 mile away) a few months ago... Whilst other devices use WiFi to connect to my private WLAN, one of the desktops is supposed to use maximum speed (72 Mbps download) and bandwidth via a CAT-5 LAN cable. The router is a standard model of the provider and has been exchanged already, the desktop is running Windows 10 and permanently updated. In addition, I updated all the device drivers using the "Avast Driver Updater" software. What happens is that the Router (given it's connected via LAN) disconnects and reboots approximately every 1/2 hour. After approx. 1 minute it restarts (with the full procedure of lights blinking etc.), so that the interruption lasts around 2-3 minutes in total. For another 1/2 hour (this interval changes wildly, sometimes it is 1 hour, sometimes only 20 min or e.g. during the night even several hours) everything seems to be running normal with no indication of an error and at full speed. I've tried using 2 different LAN devices of the desktop computer (1 PCI-Express and a built-in Gigabit-device) and also all 4 different LAN inputs of the router. No change that I would have been able to observe. Since I couldn't resolve the problem, I'm currently using a WiFi stick which works perfectly but only makes 60% the speed (approx. 47 Mbps). Would someone please help me narrow down the error and/or give me hints on how/where I can find help on such a peculiar problem? Thank you very much in advance! Michael
I got the impression your wifi works, but not your cat-5 cable connection. I would look at the cable and connectors; maybe you're shorting.
"Before entering on an understanding, I have meditated for a long time, and have foreseen what might happen. It is not genius which reveals to me suddenly, secretly, what I have to say or to do in a circumstance unexpected by other people; it is reflection, it is meditation." - Napoleon I
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Thank you, Dave. I'm afraid that, if you were right, the error would NOT only affect the desktop computer but rather all connected devices - which it doesn't. The router as well as all the cables and sockets were exchanged by the provider twice already – they even had engineers replace the outside lines from the house to the area's "exchange unit".
Sonhospa wrote:
if you were right, the error would NOT only affect the desktop computer but rather all connected devices - which it doesn't.
Something doesn't make sense here. How can the router rebooting NOT affect all connected devices? If the router is rebooting, that would definitely disconnect all devices.
The difficult we do right away... ...the impossible takes slightly longer.
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Hello everybody, It's my first question in 2022, so "happy new year" to all! I encounter a strange effect and really need an idea on how to find what is exactly happening and how to resolve the problem. Everything went perfectly fine in the exact same setup (as described in the following) before I moved house (coming from less than 1 mile away) a few months ago... Whilst other devices use WiFi to connect to my private WLAN, one of the desktops is supposed to use maximum speed (72 Mbps download) and bandwidth via a CAT-5 LAN cable. The router is a standard model of the provider and has been exchanged already, the desktop is running Windows 10 and permanently updated. In addition, I updated all the device drivers using the "Avast Driver Updater" software. What happens is that the Router (given it's connected via LAN) disconnects and reboots approximately every 1/2 hour. After approx. 1 minute it restarts (with the full procedure of lights blinking etc.), so that the interruption lasts around 2-3 minutes in total. For another 1/2 hour (this interval changes wildly, sometimes it is 1 hour, sometimes only 20 min or e.g. during the night even several hours) everything seems to be running normal with no indication of an error and at full speed. I've tried using 2 different LAN devices of the desktop computer (1 PCI-Express and a built-in Gigabit-device) and also all 4 different LAN inputs of the router. No change that I would have been able to observe. Since I couldn't resolve the problem, I'm currently using a WiFi stick which works perfectly but only makes 60% the speed (approx. 47 Mbps). Would someone please help me narrow down the error and/or give me hints on how/where I can find help on such a peculiar problem? Thank you very much in advance! Michael
Have you tried using powerline adapters with separate short ethernet cables instead of a long ethernet cable (you don't actually specify how long the connection is)? I have been using powerline adapters for many years without any problems. However, I lose quite a lot of speed as I run them across ring circuits (3 PCs on a triple port 200Mbps adapter on one ring, Router and NAS each with single port 500Mbps adapters on another ring) where they 'talk' through the distribution box (which is not recommended). Prior to 802.11n, this setup was faster than wireless (not all of my devices have wireless cards). Interestingly, if one of the PCs communicates with the NAS unit, the power adapters ignore the router and form an ad hoc link directly between the source and target nodes. The cheapest price for a pair of 1Gbps single port adapters that I have seen today is £19.99 (you need a pair: 1 for the PC, 1 for the router).
