USB Disconnect/Reconnect

Projects LimeSDR
1

I am having a strange problem with LimeSDR, the limesdr disconnects and reconnects automatically every now and then, with the device number incremented. When limesdr reconnects it gives ERROR: transfer no device message on LimeSuite GUI.

The LimeSDR is connected with Poweredge R730 USB 3.0 port on backpanel. I am running Ubuntu 16.04 Desktop.

this is what the dmesg shows

[ 5844.226851] usb 4-1: Product: LimeSDR-USB
[ 5844.226853] usb 4-1: Manufacturer: Myriad-RF
[ 5844.226854] usb 4-1: SerialNumber: 0009060B00472728
[ 5906.779453] usb 4-1: USB disconnect, device number 22
[ 5907.043477] usb 4-1: new SuperSpeed USB device number 23 using xhci_hcd
[ 5907.063939] usb 4-1: LPM exit latency is zeroed, disabling LPM.
[ 5907.064723] usb 4-1: New USB device found, idVendor=1d50, idProduct=6108
[ 5907.064725] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5907.064727] usb 4-1: Product: LimeSDR-USB
[ 5907.064729] usb 4-1: Manufacturer: Myriad-RF
[ 5907.064731] usb 4-1: SerialNumber: 0009060B00472728
[ 5976.101514] usb 4-1: USB disconnect, device number 23
[ 5976.365542] usb 4-1: new SuperSpeed USB device number 24 using xhci_hcd
[ 5976.385999] usb 4-1: LPM exit latency is zeroed, disabling LPM.
[ 5976.386787] usb 4-1: New USB device found, idVendor=1d50, idProduct=6108
[ 5976.386790] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5976.386792] usb 4-1: Product: LimeSDR-USB
[ 5976.386794] usb 4-1: Manufacturer: Myriad-RF
[ 5976.386796] usb 4-1: SerialNumber: 0009060B00472728

Please help !!!

2

After experiencing (and seeing others here have issues) would suggest checking your cable, even the one supplied with the LimeSDR has proven to be problematic, if it can be done safely (ie not putting any undue pressure on the USB connector) try plugging your LimeSDR directly into the USB port of your computer and see if the issue goes away

3

+1. Had this just the other day with a board using a very short extension cable of questionable quality.