I've just installed an Ethernet Adapter (NIC) into a PCI slot of my motherboard, but I cannot make a Local Area Connection. I have previously tried to establish a PC to PC network, utilizing the onboard network adapters via a CAT 5 crossover cable, no hub or router, but I was unsuccessful. After much work tweaking settings, drivers, and such, I thought I would just install an inexpensive Ethernet Adapter Card, and if that worked, it would tell me that I had some problem with my onboard adapter. However, now I am none the wiser, because I still do not have a LAN.
To begin with, let me introduce the non functioning LAN: PC1 is a laptop, and PC2 is a desktop. Both run Windows XP with SP2, and updated virus utilities. The Cat 5 crossover cable has been checked out on a tester, and I have swapped it end for end. I have also tried another cable. Although PC1 indicates a 'Network connection' when PC2 is turned on, PC2 always displays the message, "Network cable unplugged". PC2 also tells me that the devices (the onboard and the PCI slot NIC) are working properly. I have tried both of my PCI slots.
So, what gives? Is there some problem involving 'Chipset Drivers'? Is it a hardware or software problem? The motherboard is a Socket 'A' K7SOM+ made by ECS, apparently the same as a PcChips M810D, and the CPU is an AMD Athlon XP 2200+.
The retailer of the NIC I just bought of course says it is unlikely that the problem is with the card, but with my cable! How can I test this card? Why are the LED's not working? How can Windows 'find' the card, install the driver, and tell me it is working properly, when it appears as dead as a dodo, and as functional?
If any body can enlighten me as to how these busses, chipsets, and CPU are supposed to work to make a LAN, then I could maybe start to look for what isn't working, in order to fix the problem. Initially, I thought there may have been some physical problem where the RJ45 socket joined on to the onboard network adapter, but I am having the exact same problem in the new NIC.
Any intellegence would be greatly appreciated. There must be someone out there, perhaps in a cave in the Himalayas, who 'KNOWS'!