7. Troubleshooting Connectivity : How You Diagnose Connectivity Problems : Connection Errors : How You Resolve Remote Connection Errors
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How You Resolve Remote Connection Errors
When you cannot establish a remote connection, use this procedure to diagnose the problem:
1. Check the errlog.log for error messages.
2. If that does not identify the problem, follow the procedure for your protocol in the General Net Installation Check section of this chapter. This procedure tells you if your network and protocol are working properly and if the Name Server (iigcn) and Communications Server (iigcc) processes are working properly.
3. If the problem remains unidentified after you have looked at the error messages and performed the installation check, use the following procedure to verify that your netutil connection data entry contains the correct listen address.
a. From the local instance, check the connection data for the remote instance. Note the listen address specified in the netutil Connection Data table.
b. From the remote instance, check to see which GCC listen address the remote instance’s Communications Server is using. You can find this information in the Net Server Protocol Configuration screen in the Configuration-By-Forms (cbf) utility, or the Net Server Protocols page in Configuration Manager (vcbf).
c. If the listen address found Step a does not match the listen address found in Step b, correct the problem by re-registering the remote instance’s GCC listen address. Do this from the local instance, using netutil to edit the incorrect entry. For procedures for adding, deleting, and changing a vnode definition, see the chapter "Establishing Communications."