Rx Calibration : MCU error 5


I am using LimeSDR Mini to implement wifi example using GNURadio. The board passed the LimeQuickTest before running wifi receiver. However when I run wifi receiver from gnuradio it often gives me following error:

Rx calibration: MCU error 5 (Loopback signal weak: not connected/insufficient gain?)

I have set the Rx gain to maximum and tried running it again but I get the same error. When I run LimeQuickTest again, it fails at Loop-back Signal testing. In case I remove and re-plug the device, it passes the test again. This errors starts appearing randomly when I iterate multiple times. I am unable to figure out a reason behind it.

Could someone point me in the right direction.

PS. - The LimeSDRMini is updated to firmware 6 and gateware 1.30.

Thanks and Regards