• Do not install the FRITZ!Box during an electrical storm.
• During a storm, disconnect the FRITZ!Box from the power supply.
Moisture, Liquids and Vapors
Moisture, liquids and vapors that find their way into the FRITZ!Box can
cause electric shocks or short circuits.
• Only use the FRITZ!Box indoors.
• Never let liquids get inside the FRITZ!Box.
• Protect the FRITZ!Box from vapors and moisture.
Improper Cleaning
Improper cleaning with strong detergents, solvents or wet cloths can
cause damage to the FRITZ!Box.
• Please refer to the information about how to clean your
FRITZ!Box; see page 209.
Improper Opening and Repairs
The device contains hazardous components and should only be opened
by authorized repair technicians.
• Do not open the FRITZ!Box housing.
• If the FRITZ!Box needs to be repaired, please take it to a special
ized vendor.
Internet Security
Comprehensive information about how to protect your FRITZ!Box and
your home network from access by strangers is presented in the
internet at:
en.avm.de/guide
Radio and Electromagnetic Interference
Radio interference can be generated by every device that emits elec
tromagnetic signals. With so many devices transmitting and receiving
radio waves, interference can occur when radio waves overlap.
General Remarks
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9FRITZ!Box 4020
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