Vaisala HMT140 User Manual

Page 69

HMT140 User’s Guide

Use a static IP address temporarily and connect to the

network to determine if HMT140 transmissions are

being received by the host.

Make sure the DHCP Server has not exhausted the

number of assignable IP addresses.

Check if the DHCP Server needs to be configured to

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
1

Verify your network settings.

Verify that you are connected to the right network.

Verify that the Destination IP address is correct.

If using the broadcast address, verify that the network

can support broadcasts. Most routers by default will not

route broadcast traffic.

If the host will respond to ping requests, use the Ping

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:

• 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

Destination Host

function from the Tools tab).

If using a hostname for the destination address:

Make sure the DNS address is correct (whether set as

static or obtained through the DHCP server).