[Samsung Galaxy S9 & S9+ (Snapdragon) ROMs, Kernels] Extreemator:
I typed as you advised on windows

adb.exe shell

logcat | grep rlc

Doesn't look good at all

starqltechn:/ $ logcat | grep rlc

03-28 00:00:00.017 1417 1417 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.receiver.RetryReceiver: com.samsung.android.rlc.SPP_MG_REGISTRATION_REQUEST_RETRY

03-28 00:00:00.017 1417 1417 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.receiver.RetryReceiver: ACTION_SPP_RETRY

03-28 00:00:00.018 1417 1417 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.service.RmmTask: startTask : SPP_PUSH_REG

03-28 00:00:00.018 1417 1417 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.service.RmmTask: [RmmTask] Thread is null

03-28 00:00:00.020 1417 1417 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.service.RmmTask: [RmmTask] queue size : 1

03-28 00:00:00.020 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.service.RmmTask: [RmmTaskQueue] take

03-28 00:00:00.026 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.service.RmmTask: onHandleIntent : SPP_MG_REGISTRATION

03-28 00:00:00.026 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.receiver.handler.MgRegistrationHandler: MgRegistrationManager run

03-28 00:00:00.027 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.receiver.handler.CertHandler: [getEncrytedData]

03-28 00:00:00.028 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.util.PreferencesUtil: Get Key : cert Value : 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

03-28 00:00:00.028 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.util.PreferencesUtil: Get Key : registeredimei Value : GP5yuZg7EDdjBrAkQ4M3G6I8W9As6OOFDeUgOQsExLc=

03-28 00:00:00.029 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.util.RLCUtil: [InitRlcInstance] Already Exist

03-28 00:00:00.156 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.receiver.handler.CertHandler: To receive cert data success

03-28 00:00:00.160 1417 20554 W System.err: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.samsung.android.rlc.vo.DeviceApiRequestVO.getData()' on a null object reference

03-28 00:00:00.165 1417 20554 W System.err: at com.samsung.android.rlc.receiver.handler.CertHandler.encryptData(CertHandler.java:89)

03-28 00:00:00.166 1417 20554 W System.err: at com.samsung.android.rlc.receiver.handler.MgRegistrationHandler.run(MgRegistrationHandler.java:45)

03-28 00:00:00.166 1417 20554 W System.err: at com.samsung.android.rlc.service.RmmTask.handleIntent(RmmTask.java:131)

03-28 00:00:00.166 1417 20554 W System.err: at com.samsung.android.rlc.service.RmmTask.access$200(RmmTask.java:45)

03-28 00:00:00.166 1417 20554 W System.err: at com.samsung.android.rlc.service.RmmTask$RmmTaskQueue$RmmTaskThread.run(RmmTask.java:456)

03-28 00:00:00.166 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.receiver.handler.CertHandler: Exception : java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.samsung.android.rlc.vo.DeviceApiRequestVO.getData()' on a null object reference

03-28 00:00:00.166 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.receiver.handler.CertHandler: getCert returns null

03-28 00:00:00.166 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.receiver.handler.MgRegistrationHandler: MgRegistrationManager : retry alam set

03-28 00:00:00.168 1417 20554 I RLCCLIENTTRACE_LOG_com.samsung.android.rlc.receiver.handler.MgRegistrationHandler: [setRetry]

03-28 00:00:00.169 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.util.PreferencesUtil: Get Key : retry_12 Value : 1553062530660

03-28 00:00:00.169 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.util.PushUtil: Scheduling retry , back off time : 46080000(com.samsung.android.rlc.SPP_MG_REGISTRATION_REQUEST_RETRY)

03-28 00:00:00.174 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.util.PushUtil: Retry back off for check api is max value

03-28 00:00:00.174 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.service.RmmTask: Register Connectivity Receiver

03-28 00:00:00.174 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.service.RmmTask: Previous register time is small then max back off

03-28 00:00:00.175 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.service.RmmTask: [RmmTaskQueue] take

03-28 00:00:10.182 1417 20554 D RLCCLIENTTRACE_LOG_com.samsung.android.rlc.service.RmmTask: [RmmTaskQueue] destroyed by Timer

03-28 00:02:38.082 947 1105 D CommandListener: bwctrlcmd: argc=3 bandwidth setglobalalert ...

03-28 00:07:35.569 1417 2037 D KG.Utils: getRlcState rlcState :

03-28 00:07:35.687 1417 2037 D KG.Utils: getRlcState rlcState :

03-28 00:07:35.879 1417 3834 D KG.Utils: getRlcState rlcState :

03-28 00:07:35.965 1417 2037 D KG.Utils: getRlcState rlcState :