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Problem Description Possible Causes Problem Solving
Connected to the internet, but 
it cannot open any website 
page.
1. After connection, you are 
unable to open web pages.
1. Check that the APN in the 
confi guration fi les is correct.
2. IE browser is causing 
problems.
2. Upgrade to the new version 
or reinstall the IE browser.
3. Your operating system 
maybe infected by a virus. 
Worm blaster for example 
can affect upload and 
downloaded data fl ow, 
resulting in an inability to 
access a website.
3. Use a professional anti-
virus software to check and 
remove the virus.
4. You have connected 
to an APN which cannot 
connect to the Internet.
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.
The modem cannot connect 
to the Internet while you are 
travelling.
You USB modem is not 
permitted to roam between 
provinces.
Contact with the network 
supply provider.