•On the Internet page, check that the PIN field is filled in and that there is no error message beside this field. If there is a message saying Insert SIM, verify that a valid SIM card is correctly inserted and then retype the PIN code on the Internet page. If the message says Set PIN, only retype the PIN code. If the SIM blocked message is displayed, the PUK is required to unblock the card.
•On the Internet page, check that the APN is correctly entered in the APN (3G) and APN (2G) fields.
•On the Internet page, verify that the mobile network signal quality indicator displays at least one bar. If not, move the Ericsson W20 or attach an external antenna (indoor window or outdoor roof mounted). External antennas are available as accessories to the Ericsson W20.
•Make sure that the LAN or WLAN connection is established. For
4.3Slow or Intermittent Internet Connection
If your Internet connection is unacceptable slow or regularly dropping, take the following actions to identify and solve the problem:
•On the Internet page, verify that the Connection is HSDPA or UMTS. If not, move the Ericsson W20 or attach an external antenna (indoor window or outdoor roof mounted). External antennas are available as accessories to the Ericsson W20.
•On the Internet page, verify that the mobile network signal quality indicator displays at least two bars. If not, try to move the Ericsson W20 or attach an external antenna.
4.4No Access to a Certain Internet Application
If you cannot access a certain Internet application or specific type of data, take the following actions to identify and solve the problem:
•If the application uses FTP or TFTP, check the NAT page to make sure that the ALG supporting the Internet application is enabled.
•If the application requires UPnP IDG, check that UPnP IDG is enabled on the NAT page.
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