5.Troubleshooting
151
System Software Installation (Network Port Method)-1
Installation fails repeatedly.
Possible cause:
There is a conflict between the installer or the security settings on the PC.
Incorrect or defective RJ-45 cable
The installer is not compatible with the PC.
Suggested action:
1. Check again that you have disabled all software programs and network and security settings on
the PC. Then retry the installation. Before you retry the installation, turn OFF the E-25C power
using its dedicated AC power switch and wait 10 seconds.
2. Make sure you use a cross-over RJ-45 cable. As an alternative, you can use two straight-
through RJ-45 cables and a network hub. Connect only the PC and the E-25C to the hub. If the
cable appears damaged, replace it.
3. If the problem persists, retry the installation using a different PC.
System Software Installation (Network Port Method)-2
Symptom:
Installation stalls for 5 minutes (or longer) while downloading.
Possible cause:
The service switches are set to normal mode
Incorrect or defective RJ-45 cable
Motherboard defective
Suggested action:
1. Make sure the E-25C service switches are set to service mode (toward "ON").
2. Make sure you use a cross-over RJ-45 cable. As an alternative, you can use two straight-
through RJ-45 cables and a network hub. Connect only the PC and the E-25C to the hub. If the
cable appears damaged, replace it.
3. Replace the motherboard.
System Software Installation (USB Method)
System Software Installation (USB Method)-1
Symptom:
E-25C remains ON for 30 minutes (or longer) after beginning installation.
Possible cause:
One of the following:
Service switches are set to the wrong mode
E-25C must be reset
Faulty USB flash drive
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