The port flashes orange and green even without a cable plugged into it. When we do connect an ethernet cable, we cannot get through the port to the router. We have trouble shot by taking that cable and putting it in one of the other 10/100 ports. This does slow us down. Any help is greatly appreciated and thanks for taking the time to read this.
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Re: 3Com 3c17304 port 25 up not connecting
Well I think the port is bad, I had one that did something similar to your problem. I got on the 3Com website and submitted and RMA request and they upgraded my with the newest model. But if yours is still in stock they will replace with the same type. That is what I would do. Hope this helps ya.
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1 Remove power from the Gateway.
2 Disconnect all your computers and the cable/DSL modem from the Gateway router.
3 Using a straight through Ethernet cable, connect the Ethernet Cable/DSL port on the rear of the Gateway to any one of the LAN ports.
4 Re-apply power to the Gateway. The Alert LED will flash as the Gateway starts up, and after approximately 30 seconds will start to flash more slowly (typically 2 seconds on, 2 seconds off). Once the Alert LED has started to flash slowly, remove power from the Gateway.
5 Remove the cable connecting the Cable/DSL port to the LAN port, and reconnect one of your computers to one of the Gateway LAN ports.
6 Re-apply power to the Gateway, and when the start-up sequence has completed, browse to:
and run the configuration wizard. You may need to restart your computer before you attempt this.
7 When the configuration wizard has completed, you may reconnect your network as it was before
this could be a problem with the second switch unit. what happens if you connect a pc to this cable, is that intermittent, if so, that is your problem. try fault finding with a LAN cable tester to see if there's any issue with the link cable.
Base from the description of your problem its only showing that some of the port on of your Ethernet switch is already getting bad and this usually happen on switch like this and eventually all port will go bad and will lead to the replacement of the device. With this type of problem you can first try to adjust the speed of your network card to 10 half duplex and check if that will correct the connectivity problem and if it does its just a sign that sooner or later the device is already getting bad and since its only a switch there's no firmware that we can load to it or even a reset button to bring the device back to its default settings.
What Orange light are you refering to? You have an orange and green LED on the block of the Ethernet connecter, if the cable is plugged into the plug and the other end is terminated into another deive such as a modem,bridge,router or switch the orange light(led) should come on as that indicates a valdi link hence being called the link light, the green light(led) indicates data being received or transmitted. If orange flash with sparks(bad) from the plug it means there is power on the cable..very bad as this could be due to the ethernet card that is faulty or the device on the other end of the cable is faulty.