CSW-H85K2 User Manual Ver. 1.2
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8.2
Connection Problem over TCP/IP
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Connection with the wireless network
Check if the wireless link is fine.
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Checking parameters related with TCP/IP
When CSW-H85K2 has a private IP address, an IP address of a PC and CSW-H85K2
needs to be on the same network. Check if the IP address and local port number are
correct. In the case of a fixed IP address related items such as subnet mask, gateway
IP address and DNS IP address should be configured.
TCP Server side
TCP Client side
Local IP Address, Local Port, Subnet
Mask, Gateway IP Address, DNS IP
Address, DDNS option, and etc.
Local IP Address, Peer Address, Peer Port,
Subnet Mask, Gateway IP Address, DNS IP
Address, and etc.
Table 8-1 major parameters related with TCP/IP
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PING Test
Confirm the connection over the network by PING test. If the CSW-H85K2 does not
send any reply from the request, check the network environment.
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Network Firewall
In the case of networks which need strong security, the access may be denied by
their firewall. Under this circumstance, consult the network administrator to release
ports which will be used. (Ex: TCP 1470, UDP 50005)
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Operation Mode
TCP connection will not be established when CSW-H85K2 is operating in the ISP or
Serial Configuration mode.
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Communication Mode
To make TCP connection, both a server and client should exist. If there are only
servers or clients, TCP connection cannot be established.
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ezTCP Firewall
When you set the ezTCP firewall with MAC and IP address, all hosts cannot be
reachable except for the hosts have the allowed MAC and IP address. Inactivate the
option or check the setting is correct for allowing specific hosts to access.
