CBRS question. Why does the SM keep dropping?

01/19/2021 : 05:35:02 CDT : Enabling session for SM
01/19/2021 : 05:35:02 CDT : Grant pull Acknowledgement received from SM
01/19/2021 : 15:23:19 CDT : SM not in session hence stopping heartbeat
01/19/2021 : 15:25:37 CDT : CBSD is already registered with SAS
01/19/2021 : 15:25:37 CDT : Reusing existing grant with SAS - Frequency = 3620000 kHz and EIRP = 49 dBm.
01/19/2021 : 15:25:38 CDT : Enabling session for SM
01/19/2021 : 15:25:38 CDT : Grant pull Acknowledgement received from SM
01/19/2021 : 18:48:46 CDT : SM not in session hence stopping heartbeat
01/19/2021 : 18:51:17 CDT : CBSD is already registered with SAS
01/19/2021 : 18:51:17 CDT : Reusing existing grant with SAS - Frequency = 3620000 kHz and EIRP = 49 dBm.
01/19/2021 : 18:51:17 CDT : Enabling session for SM
01/19/2021 : 18:51:17 CDT : Grant pull Acknowledgement received from SM
01/20/2021 : 17:34:25 CDT : SM not in session hence stopping heartbeat
01/20/2021 : 17:35:56 CDT : CBSD is already registered with SAS
01/20/2021 : 17:35:56 CDT : Reusing existing grant with SAS - Frequency = 3620000 kHz and EIRP = 49 dBm.
01/20/2021 : 17:35:56 CDT : Enabling session for SM
01/20/2021 : 17:35:56 CDT : Grant pull Acknowledgement received from SM
01/21/2021 : 14:49:53 CDT : SM not in session hence stopping heartbeat
01/21/2021 : 14:51:55 CDT : CBSD is already registered with SAS
01/21/2021 : 14:51:55 CDT : Reusing existing grant with SAS - Frequency = 3620000 kHz and EIRP = 49 dBm.
01/21/2021 : 14:51:55 CDT : Enabling session for SM
01/21/2021 : 14:51:55 CDT : Grant pull Acknowledgement received from SM
01/22/2021 : 07:36:05 CST : SM not in session hence stopping heartbeat
01/22/2021 : 07:38:38 CST : CBSD is already registered with SAS
01/22/2021 : 07:38:38 CST : Reusing existing grant with SAS - Frequency = 3620000 kHz and EIRP = 49 dBm.
01/22/2021 : 07:38:38 CST : Enabling session for SM
01/22/2021 : 07:38:38 CST : Grant pull Acknowledgement received from SM

you are going to need to include more information like signal levels, distance, etc to get an answer

0.428 miles (2260 feet)

Receive Power : -56 dBm
Signal Strength Ratio : 0.0dB V - H
Signal to Noise Ratio : 16 V / 17 H dB

Level: ADMINISTRATOR
Mode: Read-Write
Authentication Method: Local

Canopy Wireless Broadband
Link Capacity Test Spectrum Analyzer AP Evaluation Aiming Alignment Tool OFDM Frame Calculator BER Results Link Status DNS Test PING Test
: Tools → Link Status
PMP 450b High Gain

DOWNLINK STATUS
Receive Power :
-54.5 dBm ( -57.0 dBm V / -58.0 dBm H )
Path Info :
Path A = -45° Path B = +45°
Signal Strength Ratio :
1.0dB V - H
Signal to Noise Ratio :
7 V / 17 H dB
Average EVM :
-20 V / -20 H dB
Beacons :
100 %
Receive Fragments Modulation :
Path V:QPSK:100%
Path H:QPSK:62% 16-QAM:38%
Latest Remote Link Test Efficiency Percentage :
NA %
BER Total Avg Results :
6.848505e-04
Beacons Received Last 15 minutes :
99/99/100% (min/avg/max)
UPLINK STATUS
Transmit Power :
29 dBm (target power [30 dBm] exceeded maximum)
Max Transmit Power :
29 dBm
Power Level :
-63.5 (-67.0 V / -66.0 H) dBm
Signal Strength Ratio :
-1.0dB V - H
Signal to Noise Ratio :
29 dB V / 30 dB H
Average EVM :
-18 V / -19 H dB
Latest Remote Link Test Efficiency Percentage :
NA %
LOCAL STATUS
Session Status :
REGISTERED

looks like it might be an interference issue with those SNRs run a spectrum analysis from the SM.

I would agree with that. At less than 0.5 miles away, and with a -56 dBm Receive Power, the SNR values are typically much better than that.

Is this LOS or near- or Non- LOS?