Win XP Laptop can't ping itself or be pinged from others

As the title suggests really.

I have a laptop with win xp home. Have connected it to my work network
and also through a home network (both networks have static IPs).

Basically I cannot ping the laptop from any machine on either network,
and the laptop cannot ping itself - again this is common to both
networks.

The laptop can be accessed for file sharing and I can map its drives
from other machines.

I have checked loads of things suggested on other threads, such as
protocols (all seem fine, or at least the settings appear to match
those on the other machines) and firewalls (un-installed/turned off),
but can't solve the problem and have run out of ideas (and reached the
limit of my fairly basic knowledge of networking).

Can anyone help please?

.

Relevant Pages

  • Re: Adding a domaind laptop to my home network
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    (microsoft.public.windowsxp.network_web)
  • Re: wireless networking and file sharing
    ... is the main source of material to be shared to my friend's laptop and my own. ... the network between my own laptop and desktop. ... Create matching user accounts and passwords on all machines. ... assigned to each user account can be different; ...
    (microsoft.public.windowsxp.network_web)
  • 2 XP machines cant "see" each other
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    (microsoft.public.windowsxp.network_web)
  • Re: Networking Win2000Pro to XP-Home w/Router
    ... I re-booted both the laptop and the desktop ... access the desktop "shareddocs folder"? ... I feel like I'm getting much closer to making this home network ...
    (microsoft.public.win2000.networking)
  • Re: XP file sharing network with Access Denied message
    ... on a network with a Linksys ADSL Router.The desktop is hard wired to the ... router and the laptop connects via wireless. ... Both machines appear to be communicating as I have ... If I have enabled file sharing on the desktop what else do I ...
    (microsoft.public.windowsxp.network_web)