User's Manual

7. Troubleshooting
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NZ2WL - xxx
7. Troubleshooting
This chapter describes common problems that may occur with this product and what to do about them.
If a problem not described here occurs or the same problem occurs after checking the nature of the
problem, contact your local authorized dealer.
When Communication Fails
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Check wired LAN communication
Check the wired LAN communication between this product and the connected PC.
- Check that the LAN cable is connected correctly.
- Check if the IP addresses and subnet masks of the product and PC are set correctly.
(See "Preparation before Setup" in Chapter 3.)
- To connect the product to a PC directly, a cross cable must be used. Check to see if a straight cable
is used instead for the connection. (See "Wired LAN Connection" in Chapter 2.)
- When the product is connected to a PC through a HUB, the cable connecting this product and the
HUB must be selected depending on the HUB port. Check if the correct cable is used for the
connection. If the HUB port supports AUTO-MDIX, either a straight or cross cable can be used.
For the UPLINK port, a cross cable must be used to connect the product.
- The communication with this product is not possible unless the TCP/IP protocol is installed in the
PC.
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Check wireless LAN communication
If no problem is detected in the wired LAN communication between the product and PC, check the
wireless LAN communication between the product and access point.
- The terminals that cannot communicate with each other may have different ESSIDs. Two terminals
with different ESSIDs cannot communicate with each other.
- Check whether the wireless link mode has been set correctly. The AP to be logged in to and the
product must have the same wireless connection mode. (If the access point is set to "Standard
Infrastructure", this product should also be set to "Standard Infrastructure".)
- Check whether communication is restricted by security functions such as the MAC address
filtering.
- Check whether the data encryption setting is the same as that of the recipient.
Communication cannot be performed between devices with different types of encryption.