LI-COR LI-7820, Instruction Manual

Page: 54 / 92

Section 5. Troubleshooting
network (the network cable may be unplugged, network switch or routers may be
powered off, the IP address setting in the instrument may be incompatible with the
network or computer).
IP address setting incompatible with the network settings? If the instrument IP
address or your computer's IP address is set to static, you may need to alter either
your computer or instrument network configuration. To restore connectivity, make
the computer IP address compatible with the instrument IP address. This pro-
cedure may work on Windows 10:
1
Press the Windows key ( ) or the Windows key + R ( + R), type
cmd
, and press
Enter
to
open the command prompt.
2 Type
ipconfig
and press
Enter
.
Your computer will reply with its network configuration information. You're inter-
ested in the IPv4 Address.
3
Compare your computer's IP address with the instrument's IP address given on the display.
If the IP addresses are not compatible (see Table 5-1 below), you will not be able to
connect until you have changed one or both IP addresses.
Device IP Address Issue Potential Solution
LI-78xx 172.24.1.1 Same IP address (the last set of
octets must be different) Change PC IP address
to 172.24.1.2
PC 172.24.1.1
Device IP Address Issue Potential Solution
LI-78xx 172.24.1.1 Different network (the first two or
three octets must be the same) Change PC IP address
to 172.24.1.2
PC 192.168.1.1
Table 5-1 . Incompatible IP addresses that will lead to connection issues.
To change your computer's IP address (Windows 10):
1
Open the
Network Connections
window.
l
Press the Windows key ( ), type
Network Connections
, and press
Enter
.
l
Press the Windows key + R ( + R) and type
ncpa.cpl
and press
Enter
.
2
In the Network Connections window, double click the icon that represents your network con-
nection, and then click
Properties
.
3 Double click
Internet Protocol Version 4 (TCP/IP)
to open the IPv4 Window.
5-2 LI-7820 N₂O/H₂O Gas Analyzer