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Network FAQs

Can't see other VLAN
Common NetBIOS name problem
Can ping IP but not computername
I can ping, connect to other pc shared folders using UNC, but not browse the PC
How to delete mapped network drive with one command line
How to find MAC/Physical Address
How to hide a computer from the network browse list
How to restrict a user or group to
logon-time

Lost Network Adapters
The network BIOS session limit was exceeded
 

Common NetBIOS name problem

NetBIOS names must be between 1 and 15 characters long (the names are up to 16 characters, but the last character is reserved as a special characters). For that reason, you should not give a computer name longer than 15 characters.

Q: Can ping IP but not computer name

I have two machines, one running win2k and one running win98,.These machines are already happily sharing an  internet connection through a Netgear RP614 Cable/DSL router. I can ping each machine from the other. When I'm on one machine, I can't see the other in Network Neighborhood. How do I troubleshoot this?

A: If you use net view \\computer and get System error 53, you have name resolution problem. Try to be able access the computer by using net use H:  \\IP\sharename . If you get error 5 and access is denied. You may have permission issue and can't access the computer using net use \\IP|sharename.

Now, if it is name resolution problem and, you may need to 1) check enable NetBIOS over TCP/IP in the network settings;  2) make sure browse service is enabled. If it is permission issue, you may want to make sure 1) enable file and printer sharing in the accessed computer; 2) setup the same workgroup, logon the same user account; 3) you may try to enable guest account if it is W2K or XP; 4) enable simple file sharing if it is XP.

Q: I can ping, connect to other pc shared folders using UNC, but not browse the  PC
I have a mixed workgroup network. I can ping, connect to other pc shared folders using UNC format. But I can not browse the other PC... The error is... \\Computer name is not accessible. you might not have permission to use this network resources.

A: In a Win9x, WinME, NT, 2000 and XP mixed-mode workgroup network, you can access shares using UNC (\\computername\sharename), but can't browse the computers in My Network Places or Network Neighborhood. This most common problems in a mixed-mode network are due to TCP/NetBEUI/IPX mismatches and Master Browser election problems. Resolution: 1) Enable NetBIOS over TCP/IP on 2000/XP.   2) Disable the Computer Browser service on the XP machine. 3) make sure no firewall running.

Q: How to delete mapped network drive with one command line

A: net use * /d /y

How to find MAC/Physical Address

To find out a remote computer's MAC/Physical Address, use arp -a ip, for example, arp -a 192.168.0.1. Another way to find out MAC is check DHCP records. To find local computer MAC, use ipconfig or winipcfg.

How to hide a computer from the network browse list

By default, your computer broadcasts itself to the Browse Masters and can be viewed by double-clicking on Network Neighborhood/My Network Places. To hide the computer from being visible on the browse list, run regedit.exe, go to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanManServer\Parameters. Double-click Hidden and modify from 0 to 1. Or type the following command: net config server /hidden:yes.

How to restrict a user or group to logon-time

 To restrict a user to only logging on between 8AM-5PM, Monday through Friday, open a command prompt and type: net user <UserName> /times:M,8AM-5PM;T,8AM-5PM;W,8AM-5PM;Th,8AM-5PM;F,8AM-5PM. To remove the restriction, net user <UserName> /times:all.

 

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