Hello Gurus, I have a peculier problem to share for which i have not got any solution's till date. I have two Desktops at my home, With Windows XP SP2 as my Operating System. I have installed Eset Smart Security as my Firewall. Resently i have purchased PCI Fast Ethernet & installed on both of my PC to create Network Sharing (Dailup Internet & File Sharing) between both. Internet is installed on Computer A After installation Computer A can Excess everything on Computer B, but Computer B cannot Excess anything on Computer A, it is asking for username & password. Both my PC are in the same workgroup & I have also checked the IP Settings & Disabled my Firewall on both & Users on Both are System Administerators. Is it possible that any Software installed on Computer A might be blocking the access to Computer B ? Kindly Help me out.