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Home computer network problem

Piff

Piff

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When refurbing the house 10/12 years ago I installed a cat 5e network with 18 outlets around the house, wired back to a patch panel in a cupboard. This is connected to the router with an HP J9664A 1410-24-2G unmanaged switch. On installation I can’t remember having to configure anything.
All has worked well for over 10 years. Then at the weekend I couldn’t get internet on my main desktop PC.
I ran a Windows troubleshooter which couldn’t fix the problem but reported an issue with a network IP address.
Through a process of elimination I’m pretty sure it is a problem with the HP switch.
I‘ve got the internet back on the desktop by linking its port on the patch panel directly to the router.
It‘s possible that the switch is fried, but it seemed that the led‘s on the front were lit up as normal.
Can anyone point me in the direction of an idiots guide to resetting the network?
 
The 1410 is an unmanaged switch, there's not much you can do other than power-cycle it.

If it's faulty, the good news is that basic switches are very reasonably priced these days:



(assuming you need all 24 ports, otherwise you could get a smaller switch e.g. 16 or 12 ports)


Having said that, one typical issue with LANs is a looped network.

Try unplugging all the patch leads from the switch, then plugging back in only the patch lead to the router and the patch leads to the computer.

If it works, reconnect the rest of the patch leads one by one until the issue occurs again, and this is the circuit that is giving you grief and brings down the network.


Going back to the switch, it is possible (but not very common) for one port to fail, so try also moving the patch leads around in the switch to eliminate a failed port.
 
Time for a WiFi 6 mesh replacement, although I do prefer ye olde LAN myself
 
Apologies to admin - I thought "off topic" was the right place :doh: - hangs head in shame.

markjay said:
The 1410 is an unmanaged switch, there's not much you can do other than power-cycle it.

If it's faulty, the good news is that basic switches are very reasonably priced these days:



(assuming you need all 24 ports, otherwise you could get a smaller switch e.g. 16 or 12 ports)


Having said that, one typical issue with LANs is a looped network.

Try unplugging all the patch leads from the switch, then plugging back in only the patch lead to the router and the patch leads to the computer.

If it works, reconnect the rest of the patch leads one by one until the issue occurs again, and this is the circuit that is giving you grief and brings down the network.


Going back to the switch, it is possible (but not very common) for one port to fail, so try also moving the patch leads around in the switch to eliminate a failed port.
Click to expand...
Thanks for that, I'll give it a try.
We have 18 outlets but could probably cut down to 16 easily and maybe 12 now the sprogs no longer reside. So if I look at a new switch I'll weigh up the benefits of all 18 outlets being active over the need to remember which ones aren't.
 
Yes I have seen switches to internally fail and short. Like Markjay says, could be one port causing the overall issues. Not much to do but replace.
 
You can pick up a decent 24 port switch for less than £100. Sounds like you've had 10 years good use -time for an upgrade.
 
I have a similar set up here and for a week or two, was having all sorts of problems with it. I was about to replace it all when it began working again, no problems, just as it was before.

Openreach had been working around the clock upgrading cables, fibre optics and equipment in the area and local exchange.. anyway it was good to familiarise myself with our set up.
 
Had a few minutes tonight.
Reconnected the router to the switch.
Moved the offending patch lead to a different port on the switch & it now seems to be working.
Not going to bother working out whether the port was faulty or just giving the switch a couple of weeks rest was the solution.
Thanks for the advice & info :thumb:
 
Problem has advanced.
Yesterday the network switch seemed to fail completely even though lights were still on. Much pi55ing swapping wires around before deciding the wired network had failed & wifi was still working.
Connected main PC to router with a long patch lead & main pc was up & running.
So decided that the switch had failed completely.
New ethernet switch ordered from Amazon which was delivered a couple of hours ago.
Switch connected & I'm getting the same sort of messages as I was getting yesterday:-
"ethernet doesn't have a valid IP configuration"

Any advice welcome please as bedroom sky box is on the ethernet & I'm getting earache from SWMBO
 
The odds of both switches being bad is pretty small, so I'd be looking at either the wiring (test the new switch next to the router if you can) or the router itself. I'm guessing the router is provided by your service provider?
 
Doodle said:
The odds of both switches being bad is pretty small, so I'd be looking at either the wiring (test the new switch next to the router if you can) or the router itself. I'm guessing the router is provided by your service provider?
Click to expand...
Yes, router is provided by service provider (Sky). It has 2 RJ45 sockets on the back and both work.
I was about to try connecting patch panel direct to router to test individual connections, bypassing the new switch when I noticed a switch marked VLAN. It was set to on. I've changed it to off and suddenly everything is working again:thumb::banana:
 
Piff said:
Yes, router is provided by service provider (Sky). It has 2 RJ45 sockets on the back and both work.
I was about to try connecting patch panel direct to router to test individual connections, bypassing the new switch when I noticed a switch marked VLAN. It was set to on. I've changed it to off and suddenly everything is working again:thumb::banana:
Click to expand...
So often the simple stuff! When I was heavily involved in IT, the power lead not being plugged in/socket not switched on was firmly in the top ten of problems. And these were often computing people (MicroVax/PDP)
 
Piff said:
Yes, router is provided by service provider (Sky). It has 2 RJ45 sockets on the back and both work.
I was about to try connecting patch panel direct to router to test individual connections, bypassing the new switch when I noticed a switch marked VLAN. It was set to on. I've changed it to off and suddenly everything is working again:thumb::banana:
Click to expand...
Ah, sounds like your replacement switch wasn't as dumb (i.e unmanaged) as the one that preceded it.
 
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