hi network gurus. i am having a nightmare trying to solve this problem with my home LAN network. i tried googling almost every forum i could on the internet but still cant find any solution to my issue. i really hope somebody is able to help.
i have 2 PCs (1 desktop and 1 laptop) both running Windows XP connected to my modem/router. the desktop is connected through a wireless adapter, and the laptop is connected directly using an ethernet cable. i have run Windows "Network Setup Wizard" on both PCs and they are part of the same workgroup with File and Printer Sharing enabled. this is as far as I've gone in setting up my LAN and everything works fine. i am able to see both PCs under My Network Neighbourhood and can access files from either PC just fine. both PCs are also able to ping each other by IP address and comptuer name.
the problem is this only lasts temporarily. for some reason, after a random amount of time (anywhere between 1 hour to a few days) the desktop will "drop off" from My Network Neighborhood on the laptop. when i try to click on the desktop or workgroup in Network Neighbourhood i suddenly get the error "You might not have permission to use this network resource. Contact the administrator of this server to find out if you have permissions. The network Path was not found." after this happens i am no longer able to ping the desktop from the laptop either by the IP address or computer name.
however I am still able to ping the laptop from the desktop by IP address and computer name, although in Network Neighbourhood the laptop can no longer be seen as part of the workgroup. I am still able access the laptop and its files from the desktop using the \\*computer name* command and this will bring up the laptop name again in Network Neighbourhood.
one more thing i noticed is, once I've pinged the laptop from the desktop i found that i can again ping the desktop from the laptop, but only with the IP address. If I try to ping the desktop by computer name it still times out. howeer, this also lasts temporarily... after a while, the laptop is also not able to ping the desktop IP address again.
the only solution so far is to restart the router. once the router restarts and both PCs reconnect to it, then the LAN is working fine again... that is, until the problem above starts up once again!
my modem/router model is D-Link DSL-2640B
some additional info:
- i've assigned static IPs to both PCs so they always have the same IP address from the router.
- i've tried disabling the built-in Windows firewall on both PCs but the problem remains.
- i do not have any other anti-virus or firewall programs installed.
- i've disabled "Computer Browser" service on the laptop so that the desktop is always the Master Browser (some forums said this might help but it didn't).
does anyone know what the issue could be? i'm not even sure if it's an issue on the desktop, laptop or something to do with the router. i am prepared to get a new router but i'm not sure if that is the answer.