Connectivity issues - Resolution with Screenshots
Troubleshooting Basic Connectivity
Access network only but no Internet
Access permission issue
Any users can access to my shared folders even they don't have user accounts on my computer
Can't connect to shared resources on one of networking computers
Can't ping another computer because of the ICF
Disconnect from the network while process Access data
NIC speed can't go up to 100MB
NIC status displays send only but receive
One new computer doesn't talk to a good hub
Resolutions of computer lost network connection
Solved: One PC can't see other PC
XP disconnection issue
You cannot connect to shared resources on other computers in the network after enable ICF
Troubleshooting Basic Connectivity
1. Ensure that all computers have the same protocol installed. This should be
4. Use the ping IP or computername to test connectivity between two computers on the network. If you can ping IP but not computername, this is name resolution issue.
5. if you can ping ip and computername, but you can't map any network drive, use net view \\remotecomputer to find out the problem. If you get error 5, this is permission issue. If you get error 51, make sure that you have enabled file and printer sharing and have some folders to be shared. If you get error 53, this is name resolution issue.
6. All network access to a W2K/XP computer in a workgroup can use the Guest account without creating a username for other computer logon. So, make sure that the Guest account is set up for network access.
7. Virus - No transportation error.
Symptoms: you keep receiving the following message from My Network Places on one of three computers: "The list of servers for this workgroup is not currently available." when trying to access the shared folders. Also the shared drives shows red x. The internet access work fine.
Resolutions: 1) The Internet Connection Firewall (ICF) should not be enabled on the adapters that you use to connect the computers to the home network. If ICF is enabled on these adapters, you cannot connect to shared resources on other computers in the network.
When W2K/XP doesn't recognize the user who wants to access its shared disks or printers, you may see the below symptoms.
1. When win9x tries to access a w2k/xp computer shared folder, the IPC$
prompt. No password will be accepted. Resolution: you need to create the user
account on w2k/xp for win98 logon.
Symptom: If this is domain network and the shared folders are assigned permission to everyone, any one logon the domain can access to your computer, even you logon locally. However, if some one logon locally (no domain) on a remote computer, he/she should not be able to access to your shared folders.
Resolution: remove everyone from the security of the folders and add user accounts you want to access to your computer.
Sometimes, XP's built-in Firewall may enable after running network setup wizard on LAN connections. You can't ping or access the XP computer. To disable the XP firewall on the connection, go to the properties of the Connections, select Advanced, and deselect the firewall.
Symptoms: you are disabled from the network while process an Access data. Ipconfig shows you lost the ip is 169.254.x.x. Rebooting or disable/re-enable NIC may reconnect to the network.
Resolutions: 1. Modify hardware settings.
Symptoms: All the same computers connecting to a 10/100 switch work fine except one. If you lower to the speed to 10MB, it works.
Cause: It may be caused by the bad cable.
Cause: Hardware issue such as NIC and switch.
Symptoms: Just bought a new XP replacing a win98 computer. The XP don't talk to this hub. Other computers use the same cable and hub without problem
Cause: It may be caused by hardware configuration.
1. Try to disable
autodisconnection feature first.
For consultants, refer to XP disconnection issue page.
A: The Internet Connection Firewall (ICF) should not be enabled on the adapters that you use to connect the computers to the home network. If ICF is enabled on these adapters, you cannot connect to shared resources on other computers in the network.
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