Zte MF633 - Page 49

49
Problem
Description
Possible Causes Problem Solving
3. The operating
system is infected
by virus (Such as
Worm Blaster
which can take up a
quantity of upload
data flow and result
that it can’t receive
downloaded data
flow so that you
cannot open any
website.)
3. Use the
professional
anti-virus software
to check and kill the
virus in the
operating system
completely.
4. You have
connected to other
APN. which cannot
connect to the
Internet.
4. Contact with your
service supplier for
help.
The Modem can
not connect to the
Internet in other
places
Your USB Modem
is not permitted to
roam in your
network.
Contact with your
service supplier for
help.
No warning tone 1. No audio card is
fixed in computer or
the volume is too
small.
1. Check the audio
card and adjust the
volume properly.
2. If you select
“Mute”, you cannot
hear corresponding
alert.
2. Check the Alert
Settings to make
sure the “Mute” is
not selected.