I hooked up a simple Netgear switch to allow me to run lines to each of my optic boxes and to wifi boosters. When I turned it all on my whole system when down - no wifi, no tv - nothing - wife not happy 😉 - but when I disconnected the switch all came back on - thankfully.
I tested the ethernet lines with a handheld gizmo that you hook to each end and watch the lights. Can I use this to test if the signal is running through the switch? It doesn't.
Thanks for the help
What model is the Netgear switch?
Get a USB Ethernet dongle for your laptops. They are cheap and it comes in handy. I use it when I need to download OS updates or need reliable video calls.
The testing device you descibe sounds like a cable tester. Do not connect it to your network. It's meant to test cables in isolation. Use it to verify each cable is good.
I had the switch connected to the router. I'll try connecting the router line and then the others one at a time. I was using port #1 for the router.
Should I be seeing a solid green light as I hook up each line? Will it matter if there is anything connected at the other end of the line?
If the switch is Ok - any idea why my first attempt sent everything into chaos? At that time the lights on the switch were blinking like crazy.
Strange. I have multiple switches in my home network, including a Netgear GS208. I've never had any issues with mine. Connecting it to port 1 on the Actiontec is fine. Normally if the device you are plugging in to the switch has power, the green lights usually should light up - solid or flickering. Flickering shows there is activity on the network/connection. If nothing is plugged into the other end of the ethernet cable, there will be no light on the switch.
As @xray mentioned, try plugging one device at a time into the switch to see which could be the problem.
I tried the switch again. Connected to the router first and then each wire one by one. All of the wires except one had nothing on the other end. The other was connected to an Optik box. The Tv stated Ok but then soon started to pause and then stopped with the message "internet signal lost". I tested all of the cables - all seem Ok. Bad switch?
Connecting cables to the switch with nothing on the other end will do nothing. If the cables are good then it's the same and having nothing plugged in as far as the switch is concerned. The only time it would make difference is if the cable is shorted. It's best to do the test with just the cable to the router and the cable to the Optik box.
When you got the |Internet signal lost" message what was the state of the port LED lights on the switch (both to the Optik box and the router)?
Is the switch new or old? While it's possible the switch is bad it's more likely the power adapter might be bad. I've had to replace a power supply on my Asus switch because it was buzzing. While it still worked at the time any noise from an power adapter is a sign of impending failure.