Operating Instructions and Installation Instructions

Cannot Establish a WLAN Connection
FRITZ!Box 7330 133
Testing a Non-encrypted WLAN Connection
Test whether a non-encrypted WLAN connection between the
FRITZ!Box and the WLAN adapter is possible.
1. Connect a computer to the FRITZ!Box with a network ca-
ble (see page 23).
2. Open the FRITZ!Box user interface (see page 31).
3. Select “WLAN / Security”.
4. Enable the “non-encrypted” option.
5. Click the “Apply” button.
6. Remove the network cable and try again to establish a
connection.
If you cannot establish a non-encrypted WLAN connection,
make sure that the WLAN adapter in your computer is in-
stalled correctly. If the error cannot be remedied, contact the
manufacturer of the WLAN adapter.
Installing the Current Service Pack for Windows XP
The WLAN connection to the FRITZ!Box cannot be established
using the Microsoft WLAN Service (WZC: Windows Zero
Configuration) in Windows XP with Service Pack 2.
The required Microsoft patch for WPA2 (IEEE 802.11i) may not
be not installed.
Install Service Pack 3 (SP3) for Windows XP, available as a
free download from Microsoft. Then Microsoft WLAN Service
will support WPA2, so that a WLAN connection can be estab-
lished to the FRITZ!Box.
Disable WLAN encryption only for testing. Enable WLAN
encryption right away after completing the tests.
Cause
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