5-10
TROUBLESHOOTING Orban Model 8400
A) Click “Start / Programs / Accessories / Communications / Network and Dialup Con-
nections” to bring up the Network Connections screen.
B) In the “Network Connections” window, right-click “Optimod 8400 - Direct” and
choose “Properties.”
C) The “Properties” window opens for “Optimod 8400 - Direct
D) Click the “Networking” tab.
E) Set “Type of dial-up server I am calling” to “PPP: Windows 95/98/NT4/2000, Inter-
net.”
F) Select the “Settings” button and make sure all PPP settings are unchecked. Then click
“OK.”
G) In “Components checked are used by this connection,” uncheck all except for “Inter-
net Protocol (TCP/IP).”
H) Select “Internet Protocol (TCP/IP)” and then click the “Properties” button. The “Inter-
net Protocol (TCP/IP) Properties” window opens.
I) Choose “Obtain an IP address automatically” and “Obtain DNS server address auto-
matically”
J) Click the “Advanced…” button on the “Internet Protocol (TCP/IP)” Window.
K) In the “Advanced TCP/IP Settings” select the “General” Tab; make sure that no check
boxes are checked.
L) In the “Advanced TCP/IP Settings” select the “DNS” Tab.
M) In the “Advanced TCP/IP Settings” select the “WINS” Tab.
N) Click “OK” to dismiss the “Advanced TCP/IP Settings” window.
O) Click “OK” to dismiss the “Internet Protocol (TCP/IP) Properties” window.
P) Click “OK” to dismiss the window whose name is your new connection.
Q) Click “Cancel” to dismiss the “Connect [nnnn]” dialog box
R) Restart your computer. (This resets the serial port and reduces the likelihood that you
will encounter problems connecting to the 8400.)
S) If you see: “Error 777: The connection failed because the modem (or other con-
necting device) on the remote computer is out of order”:
The “remote computer” is actually the 8400 and it is not out of order; you just
need to set the Maximum Speed (Bits per second) to 115200. If you already set
this speed when you configured your PC ports, you shouldn’t have this prob-
lem.
Note: The 8400 communicates at 115200 bps. COM ports on some older
PCs are incapable of communications at this rate and may not work reliably.
Most newer PCs use 16550-compatible UARTS, which support the 115200
bps rate.
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