Take a look on the Advanced tab of Local Area Connection Properties , see if Internet Connection Firewall has been enabled.
4 Comps, all running Windows XP Home. All are networked and have been working together for some time. All of a sudden 2 of them are "blind" to the rest of the network.
Belldandy - This computer can not see anyone on the network except for herself. Can get on the internet, can ping all the other comps
Skuld - In the network window she can not even see herself. Can get on the internet, can ping all the other comps
Aika - Can see all comps on the network
Rose - can see all comps on the network
This problem has happened before, and I am tired of paying techs $90 an hour to come in here and fix it. Why are Belldandy and Skuld suddenly "blind"? *NOTHING* on the network has changed. Just all of a sudden *poof* nothing.
Any and all help is appreciated.
Sean

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic