Installation guide

BlipNet Administrators Guide
72
BlipNode does not connect to the BlipServer
If a BlipNode is attached to the LAN where the BlipServer is running and the BlipNode is not
found by the BlipNet within approx. 30-60 seconds, something is wrong. Every time the
BlipNode is switched on, it will search for a BlipServer. This search will be repeated every 30
seconds.
By looking at the BlipManager Main window, it can be verified whether the BlipNode is
connected to the BlipServer or not. A connected BlipNode is displayed with black text and a
blue BlipNode icon. A disconnected BlipNode is displayed with grey text and a grey BlipNode
icon.
If the BlipNode does not find the BlipServer, please try the following procedure to locate the
problem:
1.
Check that you have valid license file installed and enough BlipNode licenses. Please
refer to Getting Started and BlipServer Properties->General Panel
2.
Check if the BlipNode has retrieved an IP address.
Try to ping the network broadcast address. The network broadcast address depends
on the specific network configuration.
An example of a broadcast address:
The subnet mask is 255.255.255.0
The network address is 101.102.103.00
On this network the network broadcast address is 101.102.103.255.
Try to ping all BlipNodes on this subnet via a command prompt and then check the
arp table of the BlipServer.
In Windows ping by typing:
ping 101.102.103.255
In Linux ping by typing:
ping –b 101.102.103.255
Check the arp table by typing following in a command prompt:
arp –a
Next try to find the “MAC” address of the BlipNode in the arp table to see if an IP
address has been assigned. The MAC address of the BlipNode can be seen on the
white label on the BlipNode.
3.
If the BlipNode is found in the arp table, the BlipNode has an IP address. Go to step 3.
If the BlipNode does not have an IP address, go to step 4.
4.
The BlipNode has an IP address. If the BlipNode does not connect to the BlipServer
this can be due to any one of 4 reasons:
a. The BlipServer does not allow all BlipNodes to connect and the specific
BlipNode is not listed as one of the allowed BlipNodes.
Solution: Add the BlipNode to the “BlipServer Allowed BlipNodes List”, or allow
all BlipNodes to connect to the BlipServer.