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#1 2024-02-26 00:32:17

Ron
Member
Registered: 2018-04-22
Posts: 479  

[SOLVED] Intermittent Network Disconnections

So I don't think this is related to my previous problem here since I noticed this happening somewhat earlier. So far it has caused no problems. I keep getting intermittent messages that my network connection has been lost. It comes back within a minute, but it's really getting annoying. I'd say it happens maybe once every hour or two. Is there anything I can do about this? Thanks.

[ Also I noticed that after booting, whereas before I'd have a connection almost immediately, it takes about 30 seconds to a minute after my desktop appears. ]

Last edited by Ron (2024-03-04 23:47:39)

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#2 2024-02-26 04:15:03

GlennW
Member
From: Brisbane, Australia
Registered: 2019-07-18
Posts: 589  

Re: [SOLVED] Intermittent Network Disconnections

I get those too, but I had a feeling it was the old wifi router at this place.

I don't get the start-up prob... I turn the wifi off before I shutdown for the night to avoid surprises

(I start the vpn, proxy and ptunnel manually, but the nft firewall starts with sysinit)

I'd be interested to see what may cause the drop-outs.


pic from 1993, new guitar day.

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#3 2024-02-26 21:29:30

Ron
Member
Registered: 2018-04-22
Posts: 479  

Re: [SOLVED] Intermittent Network Disconnections

I'd be interested to see what may cause the drop-outs.

Is there any kind of log I can check for this? Or a message in the network manager? I never had this problem before.

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#4 2024-02-26 21:46:07

GlennW
Member
From: Brisbane, Australia
Registered: 2019-07-18
Posts: 589  

Re: [SOLVED] Intermittent Network Disconnections

I haven't found one (a log file) for the network device after startup (boot and init) but the place to search is /var/log/

I did see references in user.log sys.log and dmesg, but mostly early initialisation.

user.log tells me cron is complaining about not have mta for internal mail (to nobody but me) but doesn't explain the drop outs.

I think if I were to search further, I would check the logs inside the modem/router, But I am not suppose to access the modem, It's not mine.


pic from 1993, new guitar day.

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#5 2024-02-28 03:49:00

pcalvert
Member
Registered: 2017-05-15
Posts: 195  

Re: [SOLVED] Intermittent Network Disconnections

@Ron,

Do you happen to have an eero router? Those things are notorious for this. In my experience, on Windows 10 the problem is very bad. I'll click on the Connect button, and it will connect after a considerable delay. But then, very often, it will disconnect immediately or within a minute or so. The problem is bad enough that when I run Windows Update I plug an Ethernet cable into the laptop and don't even bother with Wi-Fi. So far, on Devuan the problem has been nonexistent for me; however, I don't use Devuan with Wi-Fi very often, so the problem may still be there but with much less severity compared to Windows.


Freespoke is a new search engine that respects user privacy and does not engage in censorship.
Another one is called Luxxle.

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#6 2024-02-28 09:34:13

alexkemp
Member
Registered: 2018-05-14
Posts: 292  

Re: [SOLVED] Intermittent Network Disconnections

Routers (and WiFi cameras, and many other IoT devices) used to be targeted because their firmware was so seldom updated. Scammers & Spammers learnt how to take them over. As one example, millions became part of a botnet. That became so pervasive that the manufacturers finally decided to do something.

My Virgin-supplied cable-router phones home on every startup to check if there is a firmware update available. If so it gets & installs it. That will lead to several router reboots. Even if no update there will be at least one reboot.

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#7 2024-02-28 21:30:07

Ron
Member
Registered: 2018-04-22
Posts: 479  

Re: [SOLVED] Intermittent Network Disconnections

My router is Xfinity (Arris). Also I'm connected by an ethernet cable, I'm not on wireless. I don't think the router is the problem (but I'm not an expert).

Last edited by Ron (2024-02-28 21:31:06)

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#8 2024-02-29 09:08:46

stargate-sg1-cheyenne-mtn
Member
Registered: 2023-11-27
Posts: 73  

Re: [SOLVED] Intermittent Network Disconnections

@Ron, after briefly reviewing this thread and the previous thread you mention in your OP i wonder exactly which make/model/version(s) of _modem_ and _router(s)_ you have in current operation. without that information further thought is pure conjecture.


Be Excellent to each other and Party On!
ttps://www.youtube.com/watch?v=rph_1DODXDU
ttps://en.wikipedia.org/wiki/Bill_%26_Ted%27s_Excellent_Adventure
Do unto others as you would have them do instantaneously back to you

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#9 2024-02-29 23:20:32

Ron
Member
Registered: 2018-04-22
Posts: 479  

Re: [SOLVED] Intermittent Network Disconnections

Xfinity Arris; Model TG1682G. But another reason I don't think it is the modem is because when I lose my wired connection, my son is still connected via the wifi. That's why I think it's something in my system/computer.

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#10 2024-03-03 00:46:33

Ron
Member
Registered: 2018-04-22
Posts: 479  

Re: [SOLVED] Intermittent Network Disconnections

I wonder if the Ethernet cable going bad can cause this ?? I guess the only way to test it is to change the cable.

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#11 2024-03-03 11:54:53

stargate-sg1-cheyenne-mtn
Member
Registered: 2023-11-27
Posts: 73  

Re: [SOLVED] Intermittent Network Disconnections

@Ron,

when you have the time, review of Michael Horowitz works/websites is sometimes educational and always thought-provoking.

ttps://www.michaelhorowitz.com/

ttps://www.michaelhorowitz.com/second.router.for.wfh.php

regarding cabling, connectors, and physical ports, it is good to establish their correct and complete functioning and connectivity

i have a second-hand laptop that has a damaged ethernet port(sold to me that way, unbeknownst to me...sigh) and it works properly if you jiggle it in a certain way a bit(the poor connection shows as a 100Mbps and after some jiggle it will usually become correct at 1000Mbps).

also i grabbed a random webpage as an example:
ttps://forums.tomshardware.com/threads/getting-10-100-instead-of-1000-mbps-network-speeds.1710132/


Be Excellent to each other and Party On!
ttps://www.youtube.com/watch?v=rph_1DODXDU
ttps://en.wikipedia.org/wiki/Bill_%26_Ted%27s_Excellent_Adventure
Do unto others as you would have them do instantaneously back to you

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#12 2024-03-03 18:51:02

Ron
Member
Registered: 2018-04-22
Posts: 479  

Re: [SOLVED] Intermittent Network Disconnections

There are 4 outbound ethernet connectors on the back of my modem. I switched to a different one, and first thing I noticed is that I had a network connection as soon as the boot-up completed, and so far no disconnections (but it's still soon after boot up). I am monitoring it and will report back . . . .

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#13 2024-03-03 20:11:16

fanderal
Member
Registered: 2017-01-14
Posts: 54  

Re: [SOLVED] Intermittent Network Disconnections

my son is still connected via the wifi

A friend visited for a week. My connection wired, his wifi. The lost wired connection was from bandwidth. Possible explanation?

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#14 2024-03-04 00:46:36

Ron
Member
Registered: 2018-04-22
Posts: 479  

Re: [SOLVED] Intermittent Network Disconnections

About to shut down for the night and did not notice any network disconnections.

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#15 2024-03-04 01:17:38

alexkemp
Member
Registered: 2018-05-14
Posts: 292  

Re: [SOLVED] Intermittent Network Disconnections

My router has embedded Wifi (GByte speeds).
My Desktop also has embedded Wifi, though only 100 MB (same as Ethernet speeds).

Maybe a reason for differences on your system?

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#16 2024-03-04 18:22:51

Altoid
Member
Registered: 2017-05-07
Posts: 1,429  

Re: [SOLVED] Intermittent Network Disconnections

Hello:

Ron wrote:

... if the Ethernet cable going bad ...
... only way to test it is to change the cable.

In my experience, a good quality ethernet cable (of the right spec, obviously) is essential to achieve and maintain advertised speeds.

It is also good practise to keep a couple of unused ones handy just in case.
Those tiny/crappy plastic tabs thingies to keep them in place are a PITA.

Best,

A.

Last edited by Altoid (2024-03-04 18:23:38)

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#17 2024-03-04 23:47:15

Ron
Member
Registered: 2018-04-22
Posts: 479  

Re: [SOLVED] Intermittent Network Disconnections

The problem is solved. It was a bad ethernet port on the back of the router. Switching to a different one fixed it (it's been ~24 hours and no issues).

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