
Raven X HSDPA for Cingular - User Guide, version 2.33 99
Frequently Asked Questions and Technical Support
Unless you are instructed to use a different IP range and subnet by your Network Administrator,
using the 192.168.1.x or 192.168.0.x range with a subnet mask of 255.255.255.0 is recommended.
Caution: If the IP address of the device or computer connected to the modem is dif-
ferent from the one configured in the modem as the *HOSTPEERIP, communica-
tions will fail. If the Subnet Mask is configured differently in the modem than on
the computer or device to which it is connected, you may not be able to communi
-
cate between them.
I disabled the DHCP server in my Raven X and now I cannot connect to it,
how can I change it back?
Since the Raven X has a serial port, you can connect to the modem using Wireless Ace using PPP
or use a terminal emulator to connect directly to the serial port. In Wireless Ace (or using termi
-
nal emulation), you can change the *DHCPSERVER command to either 1 or 2.
In Wireless Ace, *DHCPSERVER is part of the PPP/Ethernet group. With a direct serial con-
nection,you would type AT*DHCPSERVER=1 (to enable it fully) or AT*DHCPSERVER=2
(to enable the DHCP server only if another DHCP server is not present on the network, this set
-
ting is recommended).
Or
If you cannot use serial to connect to the modem, to reset the DHCP server without being able to
connect to the modem using Ethernet requires resetting the NVRAM, the internal memory, to the
original factory defaults.
Software Required:
Modem Doctor - Utility to conduct diagnostics and to bring your modem to a base-level of
configuration. You can download Modem Doctor from the AirLink website: http://www.air
-
link.com/support/modems/utilities/. This utility does not need to be installed; it is run directly.
Remember where you downloaded it to, so you can run it as part of the instructions below.
1.
Connect the Raven X directly to your computer with a cross-over or standard Ethernet cable, as
applicable (Modem Doctor cannot operate remotely).
2.
Run Modem Doctor from the location on your computer where you downloaded it.
3.
Select Erase the modem’s non-volitile data .
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