Connection Problems

Contents
cla140
Contents
Problem areas for network connections can include those involving physical network connectivity, primary network address configuration, and Remote Control host configuration.
Network Connection Fails
Symptom:
I am having trouble connecting to the network.
Solution:
Use the ping command to detect basic network problems.
Examples
To test the local TCP/IP stack, for example, enter the following command in a command line window:
ping 127.0.0.1
If you get a response, then the networking software on your computer is working.
To test the connection to a remote computer, enter the following command:
ping address of remote host
IP Address Fails
Symptom:
Whenever I enter the IP address for my computer, I get an error message.
Solution:
The network adapter may not have an IP address, or the wrong address for your computer is registered to your DNS server.
To test whether either one of these conditions exists, do the following:
  1. In a command line window, enter the following command:
    ipconfig
    Your local IP address displays.
  2. Enter
    hostname
    .
    Your computer's name displays.
  3. To test whether DNS has the correct name for your computer, enter the following command:
    ping hostname
    This step echoes the IP address that DNS
    thinks
    matches your
    hostname
    . If it differs from what ipconfig returned, then there is a mismatch.
  4. To fix a mismatched IP address, enter the following command:
    ipconfig /renew
Remote Control Host Status Unknown
Symptom:
How do I determine the current status of my Remote Control host?
Solution:
The Remote Control host program runs under the control of the Common Application Framework (CAF). You can use CAF to determine whether the remote host computer is running by entering the following command:
caf status rchost host remote computer address