Network Troubleshooting
Why Doesn't the Device Respond to a Ping
(ICMP Echo Request)?
The device should reply to an internet control message protocol (ICMP) echo request. To ping
the device, open a Windows command prompt and enter
ping
192.168.10.2
, where
192.168.10.2
is the IP address for your USRP device. If you do not receive a response,
verify that the host network interface card is set to a static IP address corresponding to the
same subnet as the IP address of the corresponding device. Also verify that the device IP
address is set properly.
Related Information
on page 7
Why Doesn't the NI-USRP Configuration Utility Return a Listing
for My Device?
If the NI-USRP Configuration Utility does not return a listing for your device, search for a
specific IP address.
1.
Navigate to
<Program Files>\National Instruments\NI-USRP\
.
2.
<Shift>-right-click the
utilities
folder, and select
Open command window here
from the shortcut menu to open a Windows command prompt.
3.
Enter
uhd_find_devices --args=addr=
192.168.10.2
in the command prompt,
where
192.168.10.2
is the IP address for your USRP device.
4.
Press <Enter>.
If the
uhd_find_devices
command does not return the listing for your device, the
firewall may be blocking replies to UDP broadcast packets. Windows installs and enables
a firewall by default. To allow UDP communication with a device, disable any firewall
software associated with the network interface for the device.
Why Doesn't the Device IP Address Reset to the Default?
If you cannot reset the default device IP address, your device may be on a different subnet than
the host network adapter. You can power cycle the device in a safe (read-only) image, which
sets the device to the default IP address of
192.168.10.2
.
1.
Open the device enclosure, making sure to take appropriate static precautions.
2.
Locate the safe-mode button, a push-button switch (S2), inside the enclosure.
3.
Press and hold the safe-mode button while you power cycle the device.
4.
Continue to press the safe-mode button until the front panel LEDs blink and remain solid.
5.
While in safe-mode, run the NI-USRP Configuration Utility to change the IP address
from the default,
192.168.10.2
, to a new value.
14
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ni.com
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USRP-2930/2932 Getting Started Guide
