User guide

Resources 135
Resources
● If DHCP is enabled on the device, make sure DHCP is enabled on your computer. (See “DHCP”
on page 103.)
● Check y
our Web browser settings.
䡲 Open the Contr
ol Panel in Windows.
䡲 Double-click
Internet Options.
䡲 Fro
m the Security tab, restore the default settings.
䡲 Fro
m the Connections tab, select Never dial a connection.
䡲 Fro
m the Advanced tab, restore the default settings.
䡲 Clos
e and reopen your Web browser.
● Disconn
ect the device from your computer (if you’re using the micro-USB cable). Remove the
battery from the device. Reinsert the battery.
If, after checking all of the above, you still cannot displa
y the home page, consider resetting the
software to default settings. (See “Resetting the Software to Default Settings” on page 109.)
Cannot Connect to the 3G or 4G Network
● Make sure your computer is connected to the device (through the micro-USB cable or Wi-Fi).
(See “How Do I Connect to Wi-Fi?” on page 120 or “Making a Tethered Connection” on
page 29.)
● Mak
e sure you’re in 3G or 4G coverage.
● T
ry the tips in “Improving Signal Strength” on page 126.
● Check the
WAN Mode setting (Advanced settings > WAN > Setup). For example, if it’s set to
4G only, you won’t be able to connect if:
䡲 Y
ou have 4G coverage, but you’re roaming.
䡲 Y
ou don’t have 4G coverage.
● If y
ou’re roaming, make sure that 3G roaming is enabled. (In the 3G Roaming Information
window, select
Allow 3G Roaming.)
Note: Roaming charges may apply.
● If you’re roaming internationally, make sure that Allow international access is selected (on the
3G Roaming Information window).
● Check whether 4G is in power sa
ve mode — the LCD of the device displays “Power Save Mode.
4G Network not found.” If this is the case, press the power button
on the device or click the
Scan for 4G button in the Signal Quality window.
● Check with
Sprint — a network or account problem may be preventing your device from
obtaining service.