[Closed] Help Please: Internet coneection problems with two machines plus livebox

Hi,

I've got IP addres conflict issues with two machines connecting to a livebox. Any help greatfully recieved as I work from home, and as it is a home connection problem due to family machine I'm looking elsewhere than my work IT dept.

Computer A (work laptop, with no administrator rights, no orange software installed)+ Computer B (laptop with wifi USB key and connected via orange software) + livebox = never any problems.

Then buy home computer C as B's harddrive packs up.

Computer C (orange software not installed) + livebox =OK.

Computer A on. computer C off +Livebox = Computer A constantly dropping connection.

Fire computer A up first, then Computer C = Computer A constantly dropping connection. COmputer B fine

Fire computer C up first, then Computer A = Computer A fine. Computer B fine

I get the same problem if I connect Computer A via ethernet cable to livebox. Computer A is fine, as it has been swapped for a brand new machine and I get the same problems