Lan Description: (2) computers (A &B) running xp home edition sp2 ethernet connection to LInksys DI624 router plus switch to add connection space. (2) laptops connect to DI 624 with wireless both running xp pro, Network printer connects to DI 624 with wireless. NAS connected by ethernet to DI 624. Network printer available from all computers. A & B share printers, NAS available from both laptops and (1) desktop (A). Laptops and Desktop (A) all see each other in Workgroup and can share files. Desktops (A & B) can see each other in workgroup. Problem is that Desktop (B) only can see (A) in workgroup and not laptops or NAS. It does see the network printer. I have run without firewalls with same result. Have changed network security from MC Afee to Norton no improvement. Run IPCONFIG/all on A & B with identical results except for node type (A is hybrid, B unknown). Also tried microsoft fix it 50135 no change. Any suggestions would be appreciated1 person needs an answerI do too

Here are general network troubleshooting steps. Not everything may be applicable to your situation, so just take the bits that are. It may look daunting, but if you follow the steps at the links and suggestions below systematically and calmly, you will have no difficulty in setting up your sharing. For XP, start by running the Network Setup Wizard on all machines (see caveat in Item A below). Problems sharing files between computers on a network are generally caused by 1) a misconfigured firewall or overlooked firewall (including a stateful firewall in a VPN); or 2) inadvertently running two firewalls such as the built-in Windows Firewall and a third-party firewall; and/or 3) not having identical user accounts and passwords on all Workgroup machines; 4) trying to create shares where the operating system does not permit it. A. Configure firewalls on all machines to allow the Local Area Network (LAN) traffic as trusted. With Windows Firewall, this means allowing File/Printer Sharing on the Exceptions tab. Normally running the Network Setup Wizard on XP will take care of this for those machines.The only "gotcha" is that this will turn on the XP SP3 Windows Firewall. If you aren't running a third-party firewall or have an antivirus/security program with its own firewall component, then you're fine. With third-party firewalls, I usually configure the LAN allowance with an IP range. Ex. would be 192.168.1.0-192.168.1.254. Obviously you would substitute your correct subnet. Refer to any third party security program's Help or user forums for how to properly configure its firewall. Do not run more than one firewall. DO NOT TURN OFF FIREWALLS; CONFIGURE THEM CORRECTLY. B. For ease of organization, put all computers in the same Workgroup. This is done from the System applet in Control Panel, Computer Name tab. C. Create matching user accounts and passwords on all machines. You do not need to be logged into the same account on all machines and the passwords assigned to each user account can be different; the accounts/passwords just need to exist and match on all machines. DO NOT NEGLECT TO CREATE PASSWORDS, EVEN IF ONLY SIMPLE ONES . If you wish a machine to boot directly to the Desktop (into one particular user's account) for convenience, you can do this: XP - Configure Windows to Automatically Login (MVP Ramesh) - http://windowsxp.mvps.org/Autologon.htm D. If one or more of the computers is XP Pro or Media Center, turn off Simple File Sharing (Folder Options>View tab). E. Create shares as desired. XP Home does not permit sharing of users' home directories or Program Files, but you can share folders inside those directories. A better choice is to simply use the Shared Documents folder. F. After you have file sharing working (and have tested this by exchanging a file between all machines), if you want to share a printer connected locally to one of your computers, share it out from that machine. Then go to the printer mftr.'s website and download the latest drivers for the correct operating system(s). Install them on the target machine(s). The printer should be seen during the installation routine. If it is not, install the drivers and then use the Add Printer Wizard. In some instances, certain printers need to be installed as Local printers but that is outside of this response. Some network printers can be added by installing business-class drivers and then using the Add Printer>Local Printer>New Port>TCP/IP process. Other network printers require you to go through the full installation. MS-MVP - Elephant Boy Computers - Don't Panic!