My little home network consists of a Desktop PC, a Laptop, a Netgear DS106 hub (not a switch or a router - just a hub) and a broadband cable modem. The computers both run Windows XP Professional.
My PC's motherboard used to have 2 LAN ports - one connected to the hub, the other connected to the cable modem. The laptop was connected to the hub. This configuration allowed the computers to see each other and for both to access the internet simultaneously (the laptop presumably going through the PC).
My PC has just come back from the repair shop with an "upgraded" motherboard that only has a single LAN port. I have therefore had to connect the PC, laptop and cable modem all into the hub. The problem now is that the compters don't see each other and only one can ever access the internet - the first one to be switched on.
When I use the "ipconfig /all" command on the PC, I am shown an IP address, a DHCP Server address and 3 DNS Servers. "ipconfig /all" on my laptop only shows an IP Address but no DHCP or DHS server addresses.
When I try keying in the same DNS address into my laptop's TCP/IP settings, they appear when "ipconfig /all" is run, but still no mention of a DHCP server.
Why does my laptop not see a DHCP Server address?
Where is the "DHCP server" in this simple network - my desktop PC, my cable modem, or my hub?
Is this simple "hub" connection capable of providing shared internet access or do I need to replace my simple "hub" with a "router", or get a second LAN card for my PC and try to go back to my original configuration? (I'm currently debating this with my repair shop but getting nowhere fast).
Any advice gratefully received.