Vaisala HMT140 User Manual page 63

Use a static IP address temporarily and connect to the
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network to determine if HMT140 transmissions are
being received by the host.
Make sure the DHCP Server has not exhausted the
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number of assignable IP addresses.
Check if the DHCP Server needs to be configured to
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accept this type of device (it is possible the DHCP Server
is taking too long to respond to the request).
Can connect to the network, but host is not receiving UDP
packets
Verify your network settings.
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Verify that you are connected to the right network.
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Verify that the Destination IP address is correct.
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If using the broadcast address, verify that the network
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can support broadcasts. Most routers by default will not
route broadcast traffic.
If the host will respond to ping requests, use the Ping
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from Sensor function in the Utility to have the
HMT140 ping the host. Use the Ping from PC feature
if this PC is connected or a PC on the network and ping
the host. Also try pinging the HMT140 when it is in
Config mode.
Check the following:
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• Is the host is ready to receive the transmit packets?
• Is the host configured to listen for the UDP packets?
• Is the host software running?
• Is firewall software installed at the host that would
prevent the UDP traffic?
• Is there anything on the network that would restrict
packets from being routed (like MAC filtering)?
Perform a destination test (use the Contact
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Destination Host function from the Tools tab).
If using a hostname for the destination address:
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a
M211488EN-E
Make sure the DNS address is correct (whether set as
static or obtained through the DHCP server).
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