# USRP2 and UHD **URL:** \ **Category:** GNU Radio\ **Created:** [August 10, 2011, 6:14pm UTC](https://www.ruby-forum.com/t/usrp2-and-uhd/210544 "2011-08-10T18:14:33Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\ **Post date:** [August 10, 2011, 6:14pm UTC](https://www.ruby-forum.com/t/usrp2-and-uhd/210544/1 "2011-08-10T18:14:33Z")
Hello list, I just burned the latest UHD firmware onto the SD card I am using with my USRP2, and when I use the “uhd\_find\_devices” command I am told that no devices are found. Previously I had been using the stock firmware and I could find the USRP2 by using the ‘find\_usrps’ command. When I use the ‘uhd\_find\_devices’ command the orange light on the Ethernet port (on the USRP2) lights up briefly and then nothing happens. When I boot up the device I get a sequence of three LEDs lighting up then a flash and the right bottom two light remain lit. Any help with this matter would be appreciated. Thank you, Brenden ---
**Author:** ![Brenden\_S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/65b543/32.png) [@Brenden\_S](https://www.ruby-forum.com/u/Brenden_S)\ **Post date:** [August 10, 2011, 6:47pm UTC](https://www.ruby-forum.com/t/usrp2-and-uhd/210544/2 "2011-08-10T18:47:23Z")
On 08/10/2011 09:13 AM, Brenden S. wrote: > [http://www.ettus.com/uhd\_docs/manual/html/usrp2.html#setup-networking](http://www.ettus.com/uhd_docs/manual/html/usrp2.html#setup-networking) [http://www.ettus.com/uhd\_docs/manual/html/usrp2.html#communication-problems](http://www.ettus.com/uhd_docs/manual/html/usrp2.html#communication-problems) [![](https://i.ytimg.com/vi/REDK7M-83WQ/hqdefault.jpg "USRP2 boot LED sequence") ](https://www.youtube.com/watch?v=REDK7M-83WQ) -josh ---
**Author:** ![Brenden\_S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/65b543/32.png) [@Brenden\_S](https://www.ruby-forum.com/u/Brenden_S)\ **Post date:** [August 10, 2011, 6:55pm UTC](https://www.ruby-forum.com/t/usrp2-and-uhd/210544/3 "2011-08-10T18:55:25Z")
Am 10.08.2011 um 18:13 schrieb Brenden S.: > Hello list, > > I just burned the latest UHD firmware onto the SD card I am using with my USRP2, > and when I use the “uhd\_find\_devices” command I am told that no devices are found. > Previously I had been using the stock firmware and I could find the USRP2 by using > the ‘find\_usrps’ command. When I use the ‘uhd\_find\_devices’ command the orange > light on the Ethernet port (on the USRP2) lights up briefly and then nothing > happens. When I boot up the device I get a sequence of three LEDs lighting up then > a flash and the right bottom two light remain lit. Any help with this matter would > be appreciated. > > Thank you, > Brenden Your SD card seems to boot ok. The problem may be the network settings at the host. The old version used raw ethernet frames, so only the correct network device ethX was required. However, the new version uses standard IP, so you have to set the network parameters correctly, as described in [http://www.ettus.com/uhd\_docs/manual/html/usrp2.html#setup-networking](http://www.ettus.com/uhd_docs/manual/html/usrp2.html#setup-networking) You need to be in the right network (192.168.10.0/24) to find the USRP2. Regards, Matthias ---
**Author:** ![Brenden\_S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/65b543/32.png) [@Brenden\_S](https://www.ruby-forum.com/u/Brenden_S)\ **Post date:** [August 10, 2011, 7:02pm UTC](https://www.ruby-forum.com/t/usrp2-and-uhd/210544/4 "2011-08-10T19:02:51Z")
Thank you two for the prompt reply. I had forgotten to set the static IP address and once I did the problem resolved. Thank you again Brenden On Wed, Aug 10, 2011 at 11:54 AM, Matthias W. \<