Ericsson WCDMA/HSDPA - Manual (Page 57)

Trouble-Shooting
• Check
the Alarm indicator on the front panel of the Ericsson W20 unit.
If it is red, see the information in the Alarms section on the Overview
page.
• 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 No
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.
Internet
• On the
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.
4.3 Slow 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 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.
Internet
• On the
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.
4.4 No 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 is enabled on
the NAT page.
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