D-Link DWM-156 User Manual page 23

Sent Message failure.
Data connection failed.
Connected to the Internet, but it cannot
open any website page.
D-Link DWM-156 User Manual
1. The SMS center number is incorrect.
2. The network is busy or you are in an area with
no signal.
1. You are in the place where there is no GSM/
GPRS/ EDGE/ WCDMA/ HSDPA(HSUPA)
network coverage.
2. The network is busy.
3. The APN in the user configuration file is
incorrect.
4. The device data is corrupted.
5. The network type has been selected manually,
but is incorrect.
1. After connection, you are unable to open web
pages.
2. IE browser is causing problems.
3. Your operating system maybe infected by a
virus. Worm Blaster for example can affect
upload and downloaded data flow, resulting in an
inability to access a website.
4. You have connected to an APN which cannot
connect to the Internet.
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1. Your device is preconfigured so it is unlikely
that it will need changing. However if it is missing
or incorrect contact your operator.
2. Try later or move to an area with a stronger
signal.
1. Move to an area with good signal.
2. Try later.
3. Check the APN in the user configuration file in
the "Connection Settings".
4. Local network access or the target server
maybe experiencing problems. Retry data
request.
5. Reselect the network type according to the type
of the SIM/USIM card.
1. Check that the APN in the configuration files is
correct.
2. Upgrade to the new version or reinstall the IE
browser.
3. Use the professional anti-virus software to
check and remove the virus.
4. This happens when you are changing any
preset operator value in the setting section. Check
the entry and enter the correct APN from your
operator.