Since I upgraded my PC from Vista Home Premium to Windows 7 Home Premium, I am no longer able to map to a network share on a windows 2003 server that I have running in my same workgroup. I had no problems with this when I was running Windows Vista. I'm getting:Error code: 0x80070035The network path was not foundThe dialog box says: Windows cannot access \\myserver\mysharename

Have you turned on network discovery and file sharing? Make sure Netbios is enabled over TCP/IP. Do you have a firewall enabled?MCSE, MCSA, MCDST

Okay ... you have identified 3 things for me to look at:Network Discovery and File Sharing Enabled-File and Printer sharing is already enabled-Network Discover is turned off so I turned it on and clicked on save. I went back in and it was DISABLED againNetbios is Enabled over TCP/IP-this setting was set to Default. I changed this setting to Enable NetBIOS over TCP/IPFirewall Enabled- I'm using Symantec Norton 360 and the firewall is nabled.

Is the Windows 7 firewall also enabled? If so turn it off. I'll assume you have the settings for sharing configured the same as for the other pc's on Norton. You'll have to determine why network discovery is being disabled. Here's a link to help a little http://technet.microsoft.com/en-us/library/cc753176(WS.10).aspx#BKMK_Anchor1 MCSE, MCSA, MCDST

Disable the Windows 7 firewall since you're using Norton. Here's some other things to try as well 1. Run services.msc 2. Turn on SSDP and UPnP Device Host 3. Go back to Network/Sharing Center and click on "On" on Network Discovery and hit "Apply" 4. This time it should stay "On"Here's a link to help with the understanding a little http://technet.microsoft.com/en-us/library/cc753176(WS.10).aspx#BKMK_Anchor1MCSE, MCSA, MCDST

Something else came to mind, you may also have to turn off Norton firewall until you make those settings in Windows 7 stick, then turn Norton back and and recheck to see if everything then works.MCSE, MCSA, MCDST

Okay .... I enabled SSDP and UPnP services. And now I see Network Discover is turned on.I tired to map my drive and that didn't fix my problem.I tried disabling the Norton Firewall to see if that would help mapping to a network drive and it didn't.I worked with Symantec and we rebooted my PC with Norton 360 not loading (via msconfig) and that still didn't fix my problem ... which leads me to believe it is not a firewall issue.Any other ideas?

Is your Win7 machine date/time the same as your win2003 server? Just ran into an issue with a client today who was having issue mapping a drive to win2003 server from a new win7 pro machine. They use a poorly coded inventory software hosted on the server which when you adjust dates to enter/true up inventory, it changes the system date/time on the server as well. Anyway, I changed the date back to today on the server and was able to map the drive again. Now I'm looking to see if there's a setting via gpedit or the like that I can disable on the win7 box so it doesn't do a date verification. Haven't found anything yet.

I verified that Automatically synchronize with an Internet time server is checked on both machines an successfully did an update now to the server time.windows.comI did this on both the Windows 2003 Server and the Windows 7 client machine.This did not fix the problemFunny thing is I have a laptop that is running Windows 7 w/Norton 360 and I have no problem mapping a network drive to my server.

Please configure NTLM authentication setting it via Registry. 1. Launch regedit from Start Search box.2. Find the following branch. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa 3. Create a DWORD key under Lsa and set: Name: LmCompatibilityLevel Value: 1 4. Restart.Arthur Xie - MSFT

Arthur,I did as you said and found that the DWORD already existed with a value of 3. I changed it to 1 and rebooted. This didn't correct my problem. I still am not able to map a network drive to my windows 2003 server so I changed it back to 3.Please note that I only see my 3 Windows 7 Computersin my Network folder of this Windows 7 Computer. I'm notseeing my Windows 2003 server in the Networkfolder of this Windows 7 Computer. If I go to any of my other Windows 7 Computers I DO see my Windows 2003 server in my Network Folder of their Computers.This maybe the reason why I can not map a network drive to my Windows 2003 server from this particular Windows 7 Computer. All Windows 7 Computers are running Windows Home Premium.Also please note that I can ping my Windows 2003 server from my Windows 7 Computer that is not working. I opened a ticket with Symantec and we temporarily disabled Norton 360 and this didn't correct the problem. My other computers are using Norton 360 and do not have this problem.Any ideas?Rich

All,Please allow me first to thank you for all of your assistance. I was able to fix my problem this morning but have not yet found the actual route/cause. I will continue to keep this issue open while I determine that route/cause for the benefit of others. What I did to fix my problem is this:I installed a product called SpeedUpMyPC2009 by Uniblue. There are "Tweaks" that were done by this software as a result of a Scan (which I ran a few weeks ago). The product offers an undo of these tweaks via its Recovery Center. Once I undid ALL tweaks, I was able to then map a Windows 2003 Network Drive from my Windows 7 Client. I'm going to work with the vendor Uniblue to help determine exactly what tweak could have caused that problem. This way I can re-apply the remaining tweaks.Again, thank you very much for your help and I will post my findings here.