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Newsletter 2009-03 - wireless problems

11.03.2009 - WLAN problems

may experience various problems in building a wireless connection to an access point in Windows. First you should check

whether the WLAN card in the computer or laptop is working. For laptops for the wireless device is often mounted a sliding or pressure switch or provide a FN key combination. Usually, an LED indicates the operation of the wireless device. To repair

a WLAN connection, which worked on, can let you click on the appropriate icon in repair Network Connections in Control Panel, the connection with the right mouse button.

leads to no result then it is possible that the so-called key is incorrect. The connection should be deleted from the list of wireless networks and be connected again.

Combining for the first time with a new Gerät mit dem Accesspoint könnten einem MAC-Filter den Zugang verwehren.

Sollte sich nicht die gewünschte SSID, also der WLAN-Netzname nicht unter den verfügbaren Netzwerken befinden ist das entsprechnen Netz vielleicht auf unsichtbar geschaltet oder die Übertragungsstärke ist zu schwach. Dicke Mauern, viel Metall in Wänden und Mobilliar kann zu Störungen führen. Auch Mobilfunk, andere Drahtlos-Netzwerke,  oder Schnurlostelefone können den WLAN Empfang beeinträchtigen. Werden die Funksignale durch Wände in flachem Winkel geschnitten oder gibt es Signal-Echos? Hat der Nachbar evtl. ein WLAN mit derselben SSID und auf dem selben Kanal?

Manche Geräte various equipment manufacturers to work together and often poorly run driver updates the device to success. WLAN USB stick often fails due to weak computers or slow USB 1.1 interfaces.

is sufficiently tested the hardware, some software settings are checked. If the wireless adapter set to auto obtain an IP address and DNS and the network has a DHCP server or a static IP must be forgiven? If the values for default gateway, DNS server, and subnet mask. Return an nslookup correct results.

Blocks possibly a virus scanner's browser? Is the Internet through a firewall and / or to reach proxy?

A good tool for some parameters of wireless networks to make visible the program NetStumbler .