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Re: my network switch LEDs all blinking even without LAN...
The LEDS blinking normally would indicate reset internally or when the unit has just been powered on. Continous LEDs lighting up or flashing with or without a connection is an indication of extensive hardware failure. This could have been brought about by a near lightning strike, a power surge or simply component failure. Unfortunately the repairs is not economically reasonable and therefore a replacement might be better off. Sorry.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
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there might be looping issue, please unplug all the cables from the switch and then put one by one cable in each switch port and make sure that both ends or the cable should not plug to the swithc... also check in your network there wont be virus infected pc or device..
Not necessarily! As long as a lan cable is connected on the wan port of your hub and the other end goes directly to the modem, the connection is correct. The remaining port will be left for the lan cables of the computers. No orders needed. Just make sure that lan cables was properly seated on the port. The LED blinking in the hub will tell you if its working or communicating with your computer. Find it, when the LED is not lit or blinking, the lan cable is not connected properly on the hub (or the other end of the lan cable is disconnected from the lan card of the computers).
If all cables are connected properly and still cannot connect to the network, you may need to refresh the name of the workgroup on the computers that cannot connect on the network,
How? Right click on My Computer. Select Computer Name Click Change to change the name of the workgroup that is being use by other computer. Delete the old name if the same and retype. Restart the computer and try to connect using network neighborhood.
If your PC LAN Card is active just connect the switch with Straight cable - & --you will see one yellow box in ritht side corner down to monitor screen...where the time appears.....also you can check in the Network Connections Folder. Or Right Click My Network Places> Properties> You will see local area Network....> Connected...then it is working if disconnected it's not working....Good Luck
When the computers are powered up and connected to the D-Link hub, the computers that are connected to the hub will light up the various LEDs on the hub to indicate which port on the hub is active. Also that computer's network card Link LED light should be on to indicate it is connected to the hub. If the hub's LED is off and the corresponding computer's network card Link LED is off then the network cable is faulty, or the network card is faulty (or the network card driver needs installing) or the port on the hub and/or hub is faulty. To determine which item is faulty, swap network cables around, swap computers to different ports on the hub etc
You probably have to buy another switch. However, before you try that - the eighth most right cable - switch that out to see if it was a cable problem. That's an easy thing to try before you buy another switch.
Had same problem with my Dell Pwoerconnect 2016, power it on and all LEDs light up but nothing works. The problem was traced to one or both output capacitors ( 10v 680uf ) on the ( tiny ) power supply. Capacitor symptoms include bulging or rounded tops instead of flat like new one and the rubber plug in base of capacitor protruding. Capacitors need to be replaced. I have successfully replaced with 10v 1000uf and 10v 1200uf, both Rubycon and Sanyo brands. Power to the switch board is now restored and the switch is able to function just fine. Give it a go and see if it works for your Powerconnect. BigAl
maybe its not in the hub/router, or in your lancard has the problem. try to change the networking cable you are using it sometimes the cable has a teared wire inside, or probably the lancard or your hub does not work for the type of networking cable, there are 2 types of connection for UTP cable first is the Straight through cable and the second is the Cross Over connection. Try to mix and match the cable that you have and try to use another one instead..