Central Controller Pc Status - LG MULTI V 5 Manual Book

21. Central Controller PC Status

Checking Item Error diagnosis
PC Network Setting
Can not access to ACP from PC
PC Software
21.1. PC Network Setting
■ Checking Method (Flow Chart)
ACP's IP is not changed after
reboot.
Yes
Same symptom is occurred after
changing LAN cable.
Yes
PING Test is ok.
Yes
Security system block the web
accessing.
< >
Ping Test - Failure
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Error diagnosis
· Check network setting
· Check LAN cable
· Check status of DHCP setting
· ACP version check
· Check interface program
(JAVA / Flash Player)
No
Change DHCP setting to No(not using) and
reboot
No
Change LAN Cable of ACP
(Refer to the next page)
Network Environment checking
No
(usability, duplication of ACP IP and network
switch specification)
No
Request to cleathe security system
(To site Network admimistrator)
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Ping Test - Success
■ Network Environment Checking
Case 1. The ACP directly connect with PC through a cross cable. But, you cannot access the ACP
• Check IP address of the ACP and IP address of the PC.
Ex) If IP address of the ACP is 192.168.1.101 and Net mask is 255.255.255.0, check if the first
three digits of the IP address of the PC is the same as the first three digits of the IP address
of the ACP.
In such case, the IP address of the PC shall start with 192.168.1, and it shall be different from
the IP address of the ACP. Set as follows, and try againg.
- Setting of the ACP
IP address: 192.168.1.112
Gateway addresss: 192.168.1.1
Subnet Mask: 255.255.255.0
- Setting of the PC
IP address: 192.168.1.113
Gateway addresss: 192.168.1.1
Subnet Mask: 255.255.255.0
• Check the status of the Ethernet cable (LAN cable).
• Some PC device can't connect to ACP through "Direct" LAN cable.
Case 2. PC and ACP are connected in a hub or a switch hub. But, you cannot access the ACP
• If it is right after changing the IP setting of the ACP, reset the power of the ACP.
• If it is right after connecting LAN cable to the hub or switch, it may take time for the hub or the
switch to recognize the ACP. in such case, it may help to turn off and turn on the power of the
hub or the switch.
• Check the status of the Ethernet cable (LAN cable)
• Check ARP table of the PC to see if the IP address of the ACP correnctly corresponds to the
MAC address. If duplicate MAC addresses correspond to one IP address, or if different address
from the MAC address of the PC is output, there may be a host with the same IP address as
the IP address of the ACP. in such case, the IP address of ACP or the IP address of the corres
ponding host shall be changed.
How to check ARP table
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