Switch seems to suck up bandwidth

[Velvis]

I have a DLINK DGS-1024A and whenever it is connected it seems to jam up my network, and it seems to effect wifi more than the wired part of the network.

I assumed it was something on the network plugged into the switch, but I have unplugged everything.

Even if I just plug the switch in to my router with nothing connected to the switch I have problems with network speeds and devices not connecting.

Anyone ever see anything like this? or do I just have a bad switch? (Its only 6 months old and it always caused problems, but I didnt track it down right away.)

 

[GTP]

I would either take it back and tell them it's faulty, (warranty) or just bin it and buy a new one. For the cost of it it's not worth the time trying to diagnose/fix/fool about with.
I have a DLink DES 1016D 16 Port (every port filled) that's been plugging along for over 10 years now.

 

[ComputerRepairTech]

I have a DLink DES 1016D 16 Port (every port filled) that's been plugging along for over 10 years now.

Everyone knows a dlink power adapter never lasts 10 years oh wait thats one of the models with an internal power supply hehe.

 

[GTP]

Everyone knows a dlink power adapter never lasts 10 years oh wait thats one of the models with an internal power supply hehe.

Yes, been tempted to replace it a few times but it's so reliable I haven't bothered.

 

[Encrypted Existence]

Before we go stamping the hardware as faulty, what troubleshooting steps have you taken? You advised that you unplugged everything except the connection between the router and the switch...what are the speed/duplex settings for that connection? If it's negotiating to half duplex for whatever reason that can cause symptoms like the one you mentioned. Also, do you have STP (spanning tree) enabled? If not, there could be a loop in your network causing the performance problems. You. Need. Do. More. Troubleshoot.

 

[ComputerRepairTech]

Before we go stamping the hardware as faulty, what troubleshooting steps have you taken? You advised that you unplugged everything except the connection between the router and the switch...what are the speed/duplex settings for that connection? If it's negotiating to half duplex for whatever reason that can cause symptoms like the one you mentioned. Also, do you have STP (spanning tree) enabled? If not, there could be a loop in your network causing the performance problems. You. Need. Do. More. Troubleshoot.

its an unmanaged cheapy

 

[mr m]

I assumed it was something on the network plugged into the switch, but I have unplugged everything.

Even if I just plug the switch in to my router with nothing connected to the switch I have problems with network speeds and devices not connectin

Classic case of a failing NIC or transceiver. If no devices are connected to the switch you probably have jabber. These are garbage frames of data being generated with bad CRC's on one or more ports. Since these faulty packets do not meet the timing standards of Ethernet your traffic crawls.

A network sniffer would be nice to monitor the traffic and see graphically what is taking place but not needed. Just monitor the download speeds between the original and a new switch.