Windows Networking has been messed up for a couple of years. Sometimes you can see systems and sometimes you can't. Try this. 1. Make sure the startup settings for the following services on the Dell are set at automatic. (Reboot if you make any changes) - Function Discovery Provider Host - Function Discovery Resource Publication - SSDP Discovery - UPnP Device Host 2. In Windows File Explorer on your Dell, click on "Network" in the Navigation pane and in the address bar enter the name of your XP system preceded by \\ (such as  \\MYXPSYSTEM). Se if it then shows. JohnD  
My Dell XPS15 is unable to see another computer on my network. It's a Samsung NC10 running Windows XP. It is visible from another W10 Pro PC - a Chillblast desktop professionally built. I have checked that the three options in Windows Features - SMB 1.0/CIFS File Sharing Support has all three entries enabled. SMB Direct is disabled. These are the same entries as on my Chillblast W10 Pro PC. The Samsung is visible on that but not on the Dell. The only difference is the Chillblast is connected via ethernet to the router whereas the Dell is via wi-fi. I have exhausted my knowledge trying to find a solution to this annoying problem. I can ping the Samsung and the response is fine. So why can't it be seen on my Dell XPS15? Any help appreciated.
XPS15 unable to see XP PC on network