Problem with fiber link locking network segment randomly

Jul 09, 2004 3 Replies
R

I am about to jump on board with someone that has an ongoing problem.



Two buildings connected by fiber and D-Link DFE-855 media converters on each end. Both DFE-855 units connect to 3Com 16-port hubs which are part of a Windows 2000 Server network.



The fiber is about 500' long. Every other day, all the computers in the remote building lose their connection with the server in the main building. You can't ping anything or renew the IP.



When you disconnect the power from the DFE-855 at the remote end and power it back up, connectivity is restored. Does this sound like a D-Link hardware issue? I have had nothing but problems with D-link switches so I was wondering if the same shabby quality is in their media converters.



I'm open to any feedback or suggestions.



TIA


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T

That would be my guess. Dlink for fiber?

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M

If they are identical media converters, you could try switching them. If the problem moves to the other end, then I would say it's a hardware issue. If the problem remains at the same end, the problem would be something else. Maybe a power issue (i.e. dips, spikes?)? Is either piece of equipment on a UPS or surge protector? You could even try swapping power supplies independently of the units.

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W

You're losing a lot more in business every day than the price of a set of media converters, so buy a replacement pair and get rid of the Dlinks if there's any doubt in your mind.

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