I don't know what has happened. I have a Biostar 6100-M9 motherboard with a 10/100 LAN port built in. I used it this morning and it connected to the internet (via router) fine, however now it is causing me aggro.
The light on the router is just flashing constantly (i.e. once every 2 seconds) as if there is an error. The lights from the lan port on the pc aren't on (the green flashing leds showing activity).
I have checked it isn't disabled in the bios, I have tried re-enabling it and such like, I have reinstalled the drivers using ones from Biostars website. I have tried using a different cable and still the computer does not like it, just constantly "not connected"
What can I do to solve this problem? As I said I used it successfully this morning without any aggro, but 2 hours later, and it just doesnt seem to want to work. Most recent hardware change = new external sound card but it has worked fine since then (> 1 week)
Regards
Ian