Ethernet cabling conundrum

The 25' Ethernet cable from my PC to my Router has worked fine at 100Mbps for years. Suddenly it started dropping the connection every few seconds. Not having another 25' cable I used a couple of short cables and a pair of Ethernet to powerline modems to make the connection and everything was working OK, still at 100 Mbps, but I suspect end to end throughput may be lower. Today I put in a brand new 25' Ethernet cable, and it is dropping the connection every few seconds just like the old cable!

Changing router ports makes no difference. Changing cables makes no difference. There is no change in software. 2 cables + 2 modems + random house wiring works.

Any ideas what I can try next to get rid of the modems?

SherpaDoug,


I work with maintenance of wide variety of electronic devices, and noticed someones curiously presents this same behaviour.
Once it can only be solved by exchanging the Ethernet chipset, I suspect at there is the reason of the problem.


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