Troubleshooting
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TCP/IP Troubleshooting
When you are configuring a new print server on your NT/UNIX server through LPR Port printing under TCP/IP
protocol, you might encounter the following problem in your initial installation steps:
" I can do the "arp" command. However, when I am going to ping or tftp the print server, it always shows
Request timed out. I have checked the print server’s power and it exactly passed the POST. Besides, the
network cabling is OK. As such, I can't do tftp command to get and put the print server's configuration file and
save its IP address permanently. I can't, therefore, continue installing the print server."
Regarding this problem, there are three possible causes:
A. The print server's Node ID you specified in the "arp" command is not correct.
If this is the case, please ensure the Node ID field in the corresponding entry of the print server's IP address in
NT's ARP cache table is correct by typing the following command at NT's DOS prompt.
"arp -a"
If the Node ID shown on the screen doesn't match the print server's Node ID, please follow the instructions
below to reset the entry.
1. At NT's DOS prompt, type "arp -d <print server's IP address>" to delete the current entry.
2. Type "arp -s <print server's IP> <print server's Node ID>" to specify a new ARP entry.
3. Refer to Chapter 7 for the detailed instructions to complete the installation.
B. The print server's IP address is duplicated or is as same as another computer's IP address on the
network.
If this is the case, please consult your network administrator to obtain an unused IP address for your print
server.
C. The print server is on one segment and your Windows NT server is on the other segment.
(This troubleshooting guide will also apply to a multiple-segmented network while installing the print server)
For example, assuming the print server is on Segment A, NT server is on Segment B, and there is a gateway
computer between Segment A and Segment B. The network might be a complete TCP/IP network, or a hybrid
of TCP/IP and IPX/SPX network.
If this is the case, you have to adopt the following steps, depending on which platform the gateway computer is.
a. If the gateway computer is a NT/UNIX server:
You have to do the same "arp" command to specify an entry on the NT/UNIX computer as a gateway in
order for it to forward your subsequent "ping" or/and "tftp" commands to the print server.
b. If the gateway computer is a Novell NetWare file server:
1. Due to the presence of this NetWare file server, the IPX/SPX protocol might be used on your network.
Therefore, we strongly suggest you run the PSAdmin from any client computer and select "Manual
Setup" to specify the print server's IP address (For more detailed information about Manual Setup,
please refer to Chapter 3).
2. If the solution described above is not applicable, you have to follow the instructions below to set up the
print server's IP address.
For the purpose of explanation, we assume the NT server is on Segment A and its IP address is 192.72.214.66
(subnet mask: 255.255.255.224), the print server is going to be installed on Segment B, with IP address, for
example, 192.72.214.100.