WLAN troubleshooting

Some common problems that may occur when using WLAN are discussed in this section.

• Wrong proxy settings: if you cannot browse the Web even though the WLAN connection is working and the IP settings seem to be correct, check that the HTTP/HTTPS proxy settings are defined correctly in the advanced settings of your WLAN access point.
• Problems with the WEP security mode: if you encounter these, check that the WEP keys have been entered in the correct format (ASCII vs. HEX) and have the right number of characters. ASCII WEP keys are also case sensitive; check that you have not confused any upper or lower case letters in the key. Incorrect WEP keys may cause a situation where Nokia device is able to associate with a WLAN network but no data can be transferred.
  Also remember to check that the WEP authentication mode is correct. In the access point it may be called, for example, "WEP authentication", "shared-key authentication" or "Wi-Fi security mode".
• Poor signal quality: to check the signal quality of your WLAN connection, select Menu > Connect. > Conn. mgr. > Act. data conn. > Options > Details. If the signal quality is weak or even moderate, you may encounter connection problems. Try again nearer the access point.
• Wrong security mode: it is possible that you have configured the security mode correctly, but it may not be the right mode. To check the security mode that the network uses, select Menu > Connect. > Conn. mgr. > Act. data conn. > Options > Details.
• Problems with the WPA/WPA2 or 802.1x security mode: if you encounter these, check the following:
  1. Check that the WPA mode is the right one (preshared key or EAP).
  2. Check the pre-shared key.
  3. Check that all EAP types that are not needed are disabled.
  4. Check that EAP type settings are correct (passwords, user names, certificates, etc.).
• Problems with access point configuration: if you encounter these, check the following:
  1. Many WLAN access points contain proprietary “Turbo” mode’s claiming to enhance data rates. These functionalities should be disabled from the IAP if there is any reason to believe that they are causing problems to legacy WLAN terminals.
  2. Many interoperability problems are solved by updating the IAP firmware to the latest version.
• Not all channels are available: if you use the device in the offline mode or in the USA, only channels 1-11 are available. Channels 1-13 are available in Europe.
• Finally...: remember that all Wi-Fi certified devices are unfortunately not compatible, even if they are supposed to be.