Diagnostic help please - I am stumped
At home I have a 4 port ADSL router, with wiring to four outlets round the house, including one each in the two boys' bedrooms.
Boy 2 and my PC work fine, on the internet no probs.
Boy 1 has two symptoms:
1) He can ping the internet, but cannot browse it
2) The router has the 10mbps light on, not the 100mbps
As both things happened at the same time I am assuming that they are linked.
I started with the IP side and determined that his setup is the same as Boy 2.
I then did my very best diagnostics, changing out parts one by one. His PC is now in the same room as the router, plugged directly into it using a different wire, into a different socket; I have swapped the PCI NIC for an identical one from the office, and put it into a different PCI slot. There is no point looking at NIC drivers or BIOS, because the router light goes to 10mbps the moment I switch the PC power on (Ihave checked that Boy 2's goes immediately to 100mbps.)
The only thing I haven't changed is the motherboard (which I could swap between the two boys'), but that would be a major, major operation that I am not really up for.
Has anyone any bright suggestions?
TIA
W