Ericsson W21 - Manual (Page 73)

Troubleshooting
• On
the Internet page, verify that the mobile network signal quality
indicator displays at least two bars. If not, try to move the Ericsson W21
or attach an external antenna.
4.6 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 IGD, check that UPnP IDG is enabled
on the NAT page.
• A port forwarding rule might be required for a specific application. See
section – Port Forwarding. 2.7.3
4.7 No LAN Connection
If you cannot access the local network from a PC that is connected to one
of the LAN ports on the Ericsson W21, or to an Ethernet switch or hub that
is connected to the Ericsson W21, take the following actions to identify and
solve the problem:
• Check that at least one of the LAN connector indicators is green. If not,
check that the Ethernet cable(s) is properly connected.
• Check that the PC is configured to obtain IP address automatically
using DHCP. If not, change the PC’s TCP/IP settings. For instructions,
see section
3.1.1 – Obtain IP Settings Automatically or refer to the
manual of your operating system.
4.8 No Wireless LAN Connection
If you cannot access the local network from a wireless device, take the
following actions to identify and solve the problem:
• Check that the Wireless LAN indicator on front panel of the Ericsson
W21 unit is lit. If not, connect an Ethernet cable between the PC and
the Ericsson W21 to establish a connection. The wired connection is
required for the initial Wireless LAN configuration of the Ericsson W21.
• Verify that the Wireless LAN interface installed on the wireless client is
active.
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