SCCM 2019 unable to sync with WSUS

[calvin]

I have done the cleaning up of WSUS Database and Re-add the classification but the problem still persist. The IIS application pool service is running and the SCCM is not able to connect to the WSUS server. What should i do? I think SCCM is having some other issues. Im encountering some errors in the component which is in critical status. I have also tried uninstall the WSUS and SUP but still no luck.

Critical  SMS_WSUS_SYNC_MANAGER SCCMSERVER.SCCM1.LOCAL Monitored Thread Component SCC Online 

Critical  SMS_WSUS_CONTROL_MANAGER SCCMSERVER.SCCM1.LOCAL Monitored Thread        Component SCC Unknown

Critical  SMS_WSUS_CONFIGURATION_MANAGER SCCMSERVER.SCCM1.LOCAL Monitored Thread Component SCC Online

The logs for WCM log

Checking for supported version of WSUS (min WSUS 3.0 SP2 + KB2720211 + KB2734608) SMS_WSUS_CONFIGURATION_MANAGER 5/18/2020 2:16:34 PM 6688 (0x1A20)

Checking runtime v4.0.30319... SMS_WSUS_CONFIGURATION_MANAGER 5/18/2020 2:16:34 PM 6688 (0x1A20)
Did not find supported version of assembly Microsoft.UpdateServices.Administration. SMS_WSUS_CONFIGURATION_MANAGER 5/18/2020 2:16:34 PM 6688 (0x1A20)

Checking runtime v2.0.50727... SMS_WSUS_CONFIGURATION_MANAGER 5/18/2020 2:16:34 PM 6688 (0x1A20)
Failed to create assembly name object for Microsoft.UpdateServices.Administration. Error = 0x80131701. SMS_WSUS_CONFIGURATION_MANAGER 5/18/2020 2:16:34 PM 6688 (0x1A20)

Supported WSUS version not found SMS_WSUS_CONFIGURATION_MANAGER 5/18/2020 2:16:34 PM 6688 (0x1A20)
STATMSG: ID=6607 SEV=E LEV=M SOURCE="SMS Server" COMP="SMS_WSUS_CONFIGURATION_MANAGER" SYS=SCCMSERVER.SCCM1.LOCAL SITE=SCC PID=6672 TID=6688 GMTDATE=Mon May 18 06:16:34.424 2020 ISTR0="SCCMSERVER.SCCM1.Local" ISTR1="" ISTR2="" ISTR3="" ISTR4="" ISTR5="" ISTR6="" ISTR7="" ISTR8="" ISTR9="" NUMATTRS=0 SMS_WSUS_CONFIGURATION_MANAGER 5/18/2020 2:16:34 PM 6688 (0x1A20)

Remote configuration failed on WSUS Server. SMS_WSUS_CONFIGURATION_MANAGER 5/18/2020 2:16:34 PM 6688 (0x1A20)

Here is the wsyncmgr log

Read SUPs from SCF for SCCMSERVER.SCCM1.Local  SMS_WSUS_SYNC_MANAGER 5/18/2020 2:00:01 PM 3660 (0x0E4C)
Found 1 SUPs SMS_WSUS_SYNC_MANAGER 5/18/2020 2:00:01 PM 3660 (0x0E4C)Found active SUP SCCMSERVER.SCCM1.Local from SCF File. SMS_WSUS_SYNC_MANAGER 5/18/2020 2:00:01 PM 3660 (0x0E4C)

DB Server not detected for SUP SCCMSERVER.SCCM1.Local from SCF File. skipping. SMS_WSUS_SYNC_MANAGER 5/18/2020 2:00:01 PM 3660 (0x0E4C)

Sync failed: WSUS update source not found on site SCC. Please refer to WCM.log for configuration error details.. Source: getSiteUpdateSource SMS_WSUS_SYNC_MANAGER 5/18/2020 2:00:01 PM 3660 (0x0E4C)

STATMSG: ID=6703 SEV=E LEV=M SOURCE="SMS Server" COMP="SMS_WSUS_SYNC_MANAGER" SYS=SCCMSERVER.SCCM1.LOCAL SITE=SCC PID=6672 TID=3660 GMTDATE=Mon May 18 06:00:01.071 2020 ISTR0="getSiteUpdateSource" ISTR1="WSUS update source not found on site SCC. Please refer to WCM.log for configuration error details." ISTR2="" ISTR3="" ISTR4="" ISTR5="" ISTR6="" ISTR7="" ISTR8="" ISTR9="" NUMATTRS=0 SMS_WSUS_SYNC_MANAGER 5/18/2020 2:00:01 PM 3660 (0x0E4C)

Setting sync alert to active state on site SCC  SMS_WSUS_SYNC_MANAGER 5/18/2020 2:00:01 PM 3660 (0x0E4C)
Sync time: 0d00h00m00s SMS_WSUS_SYNC_MANAGER 5/18/2020 2:00:01 PM 3660 (0x0E4C)
Skipping Delete Expired Update relations since this is not a scheduled sync. SMS_WSUS_SYNC_MANAGER 5/18/2020 2:00:01 PM 3660 (0x0E4C)
Inbox source is local on SCCMSERVER.SCCM1.Local  SMS_WSUS_SYNC_MANAGER 5/18/2020 2:00:01 PM 3660 (0x0E4C)

I have restart some of the SCCM services in service.msi (couldn't find all services inside) but SCCM is not running correctly. The WSUS is installed in add roles and features Windows Server 2016, but i really doesn't know why it cannot detect my WSUS on which installed in another server. So do i need to reinstall the SCCM console again?

May any kind souls please enlighten me.

Thank You