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Unable to 'find' or 'probe' USRP X310 but responds to 'ping'.

Hello,
 
I am having some problem with USRP x310.
 
 
After installing the daughterboards, setting up the drivers, I was able to perform commands like "uhd_find_devices" and "uhd_usrp_probe" and then I was also able to perform my experiments. (I am running srsLTE)
But today when I tried to run the experiments, it started giving me error "no rf-frontend found". So, I tried to run "uhd_find_devices" and "uhd_usrp_probe". below is the output.
 
raghav@raghav-XPS:~$ uhd_find_devices
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501; UHD_3.15.0.HEAD-0-gaea0e2de
No UHD Devices Found
 
--------------------------------------------------------------------------------------------------------------------
 
raghav@raghav-XPS:~$ uhd_usrp_probe
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501; UHD_3.15.0.HEAD-0-gaea0e2de
Error: LookupError: KeyError: No devices found for ----->
Empty Device Address
--------------------------------------------------------------------------------------------------------------------
 
I don't know what went wrong because after finishing my experiment, I simply turned off the systems and did not change any settings and when I turned everything back on today, I was not able to run srsLTE as it was giving me error " no rf- frontend found".

Since I can see light at SPF+ port 0 so that means that the x310 is still connected to my computer, so I tried to ping the x310 from my host computer 'ping 192.168.10.2' and it worked without any loss. and then I thought about trying to run 'probe' providing the IP address and even that worked.
 
But for some reason I am getting no device found for "uhd_find_devices" or "uhd_usrp_probe" or "srsenb".
 
To make sure the installation of UHD drivers is correct, plugged in a b210 and it responded to all the commands and even srslte (srsUE) was working without any error.
 
--------------------------------------------------------------------------------------------------------------------
raghav@raghav-XPS:~$ uhd_usrp_probe --args addr=192.168.10.2
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501; UHD_3.15.0.HEAD-0-gaea0e2de
[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [GPS] No GPSDO found
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[INFO] [0/DmaFIFO_0] Initializing block control (NOC ID: 0xF1F0D00000000000)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1316 MB/s)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1315 MB/s)
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[INFO] [0/Radio_0] Initializing block control (NOC ID: 0x12AD100000000001)
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[INFO] [0/Radio_1] Initializing block control (NOC ID: 0x12AD100000000001)
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[INFO] [0/DDC_0] Initializing block control (NOC ID: 0xDDC0000000000000)
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[INFO] [0/DDC_1] Initializing block control (NOC ID: 0xDDC0000000000000)
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[INFO] [0/DUC_0] Initializing block control (NOC ID: 0xD0C0000000000000)
[WARNING] [UDP] The send buffer could not be resized sufficiently.
Target sock buff size: 2426666 bytes.
Actual sock buff size: 1048576 bytes.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.wmem_max=2426666
[INFO] [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000000)
  _____________________________________________________
 /
|       Device: X-Series Device
|     _____________________________________________________
|    /
|   |       Mboard: X310
|   |   revision: 11
|   |   revision_compat: 7
|   |   product: 30818
|   |   mac-addr0: 00:80:2f:31:49:67
|   |   mac-addr1: 00:80:2f:31:49:68
|   |   gateway: 192.168.10.1
|   |   ip-addr0: 192.168.10.2
|   |   subnet0: 255.255.255.0
|   |   ip-addr1: 192.168.20.2
|   |   subnet1: 255.255.255.0
|   |   ip-addr2: 192.168.30.2
|   |   subnet2: 255.255.255.0
|   |   ip-addr3: 192.168.40.2
|   |   subnet3: 255.255.255.0
|   |   serial: 31EC216
|   |   FW Version: 6.0
|   |   FPGA Version: 36.0
|   |   FPGA git hash: fde2a94
|   |   RFNoC capable: Yes
|   |  
|   |   Time sources:  internal, external, gpsdo
|   |   Clock sources: internal, external, gpsdo
|   |   Sensors: ref_locked
|   |     _____________________________________________________
|   |    /
|   |   |       RX Dboard: A
|   |   |   ID: UBX-160 v2 (0x007e)
|   |   |   Serial: 31E17CE
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       RX Frontend: 0
|   |   |   |   Name: UBX RX
|   |   |   |   Antennas: TX/RX, RX2, CAL
|   |   |   |   Sensors: lo_locked
|   |   |   |   Freq range: 10.000 to 6000.000 MHz
|   |   |   |   Gain range PGA0: 0.0 to 31.5 step 0.5 dB
|   |   |   |   Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz
|   |   |   |   Connection Type: IQ
|   |   |   |   Uses LO offset: No
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       RX Codec: A
|   |   |   |   Name: ads62p48
|   |   |   |   Gain range digital: 0.0 to 6.0 step 0.5 dB
|   |     _____________________________________________________
|   |    /
|   |   |       RX Dboard: B
|   |   |   ID: UBX-160 v2 (0x007e)
|   |   |   Serial: 31E17CF
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       RX Frontend: 0
|   |   |   |   Name: UBX RX
|   |   |   |   Antennas: TX/RX, RX2, CAL
|   |   |   |   Sensors: lo_locked
|   |   |   |   Freq range: 10.000 to 6000.000 MHz
|   |   |   |   Gain range PGA0: 0.0 to 31.5 step 0.5 dB
|   |   |   |   Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz
|   |   |   |   Connection Type: IQ
|   |   |   |   Uses LO offset: No
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       RX Codec: B
|   |   |   |   Name: ads62p48
|   |   |   |   Gain range digital: 0.0 to 6.0 step 0.5 dB
|   |     _____________________________________________________
|   |    /
|   |   |       TX Dboard: A
|   |   |   ID: UBX-160 v2 (0x007d)
|   |   |   Serial: 31E17CE
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       TX Frontend: 0
|   |   |   |   Name: UBX TX
|   |   |   |   Antennas: TX/RX, CAL
|   |   |   |   Sensors: lo_locked
|   |   |   |   Freq range: 10.000 to 6000.000 MHz
|   |   |   |   Gain range PGA0: 0.0 to 31.5 step 0.5 dB
|   |   |   |   Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz
|   |   |   |   Connection Type: QI
|   |   |   |   Uses LO offset: No
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       TX Codec: A
|   |   |   |   Name: ad9146
|   |   |   |   Gain Elements: None
|   |     _____________________________________________________
|   |    /
|   |   |       TX Dboard: B
|   |   |   ID: UBX-160 v2 (0x007d)
|   |   |   Serial: 31E17CF
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       TX Frontend: 0
|   |   |   |   Name: UBX TX
|   |   |   |   Antennas: TX/RX, CAL
|   |   |   |   Sensors: lo_locked
|   |   |   |   Freq range: 10.000 to 6000.000 MHz
|   |   |   |   Gain range PGA0: 0.0 to 31.5 step 0.5 dB
|   |   |   |   Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz
|   |   |   |   Connection Type: QI
|   |   |   |   Uses LO offset: No
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       TX Codec: B
|   |   |   |   Name: ad9146
|   |   |   |   Gain Elements: None
|   |     _____________________________________________________
|   |    /
|   |   |       RFNoC blocks on this device:
|   |   |  
|   |   |   * DmaFIFO_0
|   |   |   * Radio_0
|   |   |   * Radio_1
|   |   |   * DDC_0
|   |   |   * DDC_1
|   |   |   * DUC_0
|   |   |   * DUC_1
 
Can someone please help me fix this problem?
 
Thank you,
Raghav.
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