Samsung M262x Benutzerhandbuch (en)

Wireless network setup
2.  Using a Network-Connected Machine
The machine is located away from obstacles that could block the wireless 
Remove any large metal objects between the access point (or wireless 
router) and the machine.
Make sure the machine and wireless access point (or wireless router) are not 
separated by poles, walls, or support columns containing metal or concrete.
The machine is located away from other electronic devices that may 
interfere with the wireless signal.
Many devices can interfere with the wireless signal, including a microwave 
oven and some Bluetooth devices.
Whenever the configuration of your access point (or wireless router) 
changes, you must do the product's wireless network setup again.
The maximum number of device that can be connected via Wi-Fi Direct is 3.
If Wi-Fi Direct is ON, this machine only supports IEEE 802.11 b/g.
If the access point is set to work with the 802.11n standard only, it may not 
connect to your machine.