[Discuss-gnuradio] USRP1: Error: Connection refused

Dear all,

I've reinstalled gnuradio 3.7.0 and UHD 003.007.001. Now I got this error when connecting USRP to my PC and running some commands:

1. sudo uhd_usrp_probe
Error:
linux; GNU C++ version 4.6.3; Boost_104601; UHD_003.007.001-release

Error: Connection refused

2. sudo uhd_find_devices
Error:
linux; GNU C++ version 4.6.3; Boost_104601; UHD_003.007.001-release


UHD Error:
    Device discovery error: Connection refused
--------------------------------------------------
-- UHD Device 0
--------------------------------------------------
Device Address:
    type: usrp1
    name:
    serial: 50a45bfc

How could I fix this?

Many Thanks,

Hoang

--

Hoang Ngo-Khac

Vietnam National University, Hanoi (VNU-H)

Univ. of Engineering and Technology (UET)

Faculty of Electronics and Telecommunications (FET)

Alternative email:  hoangnk_55@vnu.edu.vn

Mobilephone:  +84.163.682.7874