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Installing the Patch for WPA2 with Microsoft WLAN Service
FRITZ!Box Fon WLAN 7570 vDSL
101
Installing the Patch for WPA2 with Microsoft WLAN
Service
The WLAN connection to 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.
Support for WPA2 in Microsoft WLAN service was not availa-
ble until the current patch for Microsoft Windows XP Ser-
vice Pack 2. Install the current patch from Microsoft:
support.microsoft.com/kb/917021
Alternatively, you can install Service Pack 3 instead.
Ruling Out Interference Caused by Other Wireless
Networks
If there are other devices in the immediate vicinity of your
FRITZ!Box that use the 2.4-GHz band, simultaneous use of
frequencies can result in mutual interference (for example,
fluctuations or interrupted connections). Disruptions can
also be caused by other WLAN access points, or by
Bluetooth devices, garage door openers or wireless AV
bridges. In this case, please test a different radio channel
for your FRITZ!Box.
1.
Connect the FRITZ!Box to a computer using a network
cable. Proceed as described in the section “Connect-
ing Computer(s) to the LAN Port” from page 18.
2.
Start a web browser.
3.
Enter
fritz.box
in the address field.
4.
Select the “Settings” menu.
5.
Open the “Advanced Settings / WLAN / Radio Set-
tings” menu.
Possible Cause
Remedy
Page 102 / 159
FRITZ!Box Fon WLAN 7570 vDSL
102
IP Settings
6.
Select a different radio channel from the “Select radio
channel” list.
7.
Click the “Apply” button.
8.
Remove the network cable and check whether interfer-
ence continues to occur.
10.4
IP Settings
The FRITZ!Box is equipped with its own DHCP server. This
means that the connected computers obtain their IP ad-
dresses from the FRITZ!Box. The connected computers must
be configured such that they can receive their IP addresses
automatically. The steps for checking and adjusting this op-
tion differ among the operating systems. See the relevant
section for your operating system.
Obtaining an IP Address Automatically in
Windows Vista
1.
Click the “Start” button in the task bar and select
“Control Panel / Network and Sharing Center”.
2.
From the “Tasks”, select “Manage network connec-
tions”.
3.
In the “LAN or High-Speed Internet” area, select the
LAN connection between your computer and the
FRITZ!Box. Click the right mouse button and select
“Properties”.
4.
If the “User Account Control” window is displayed,
click “Continue” in this window.
5.
Under “This connection uses the following items”, se-
lect the “Internet Protocol Version 4 (TCP/IPv4)” entry
and click “Properties”.
If FRITZ!Box is operated in a network, no other DHCP server
may be activated in this network. If you need to operate a
DHCP server, please disable the DHCP feature in the “Ad-
vanced System Settings”.
Page 103 / 159
Obtaining an IP Address Automatically in Windows XP
FRITZ!Box Fon WLAN 7570 vDSL
103
6.
On the “General” tab, enable the options “Obtain an
IP address automatically” and “Obtain DNS server ad-
dress automatically”.
.
Properties of the Internet protocol (TCP/IP)
7.
Confirm your selection by clicking “OK”.
If necessary, repeat steps 5 through 7 for the “Internet
Protocol Version 6 (TCP/IPv6)” as well.
The computer now receives an IP address from the
FRITZ!Box.
Obtaining an IP Address Automatically in Windows XP
1.
Go to “start / Control Panel / Network and Internet
Connections / Network Connections” and double-click
on the LAN connection icon of the network adapter
connected to FRITZ!Box.
2.
Click the “Properties” button.
3.
Select “Internet Protocol (TCP/IP)” in the list of items
used in this network connection and click “Proper-
ties”.
4.
Enable the options “Obtain an IP address automatical-
ly” and “Obtain DNS server address automatically”.
Page 104 / 159
FRITZ!Box Fon WLAN 7570 vDSL
104
Obtaining an IP Address Automatically in Windows 2000
Properties of the Internet protocol (TCP/IP)
5.
Confirm your selection by clicking “OK”.
The computer now receives an IP address from the
FRITZ!Box.
Obtaining an IP Address Automatically in
Windows 2000
1.
Select “Start / Settings / Control Panel / Network and
Dial-up Connections”.
2.
Double-click to select the LAN connection with the net-
work adapter bound to FRITZ!Box.
3.
Click the “Properties” button.
4.
Double-click to select “Internet Protocol (TCP/IP)” in
the list of network components.
Page 105 / 159
Obtaining an IP Address Automatically in Mac OS X
FRITZ!Box Fon WLAN 7570 vDSL
105
Properties of the LAN connection of a network adapter
5.
Enable the options “Obtain an IP address automatical-
ly” and “Obtain DNS server address automatically”.
Properties of the Internet protocol (TCP/IP)
6.
Confirm your selection by clicking “OK”.
The computer now receives an IP address from the
FRITZ!Box.
Obtaining an IP Address Automatically in Mac OS X
1.
Select the “System Preferences” in the Apple menu.
2.
In the “System Preferences” window, click the “Net-
work” icon.
3.
In the “Network” window, select the “Built-in Ether-
net” entry from the “Show:” drop-down menu.
4.
Switch to the “TCP/IP” settings page and select the
“Using DHCP:” option from the “Configure IPv4” drop-
down menu.
5.
Click “Apply Now”.

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