Caused by TLS version issues, use both files below and reboot server, then Repair and configure as normal

Rename files accordingly – .ps1 for Powershell file and .reg for Reg file

From here: https://blogs.msmvps.com/bradley/2021/04/01/essentials-servers-fix-up-to-get-remotewebaccess-renewed/

Site appears to be down now

Start-ManagedFolderAssistant -Identity -FullCrawl

Verify MFA Processing:
$MRMLogs = [xml] ((Export-MailboxDiagnosticLogs <user> -ExtendedProperties).mailboxlog) $MRMLogs.Properties.MailboxTable.Property | ? {$_.Name -like "*ELC*"}

Check MRM mailbox diagnostics
Export-MailboxDiagnosticLogs -ComponentName MRM

Examine mailbox folder statistics
Get-MailboxFolderStatistics <User> -FolderScope inbox -IncludeOldestAndNewestItems -IncludeAnalysis | select name, items*, oldes*, top*

netsh wlan export profile key=clear

Batch file named: tracelog.bat

@echo off
echo Tracert at %date%, %time% >> tracertlog.txt
tracert 8.8.8.8 >> tracertlog.txt
tracelog.bat

ping.exe -t FAST.COM | Foreach{"{0} - {1}" -f (Get-Date -f "yyyyMMdd HH:mm:ss"),$_}

Outlook 2016+

HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\PST

DWORD:

WarnLargeFileSize to 95000 decimal

MaxLargeFileSize to 100000 decimal

Get-PhysicalDisk | Select -Prop DeviceId,FriendlyName,SerialNumber

dfsrmig /setglobalstate 1
repadmin /syncall /force /APed
dfsrdiag pollad
dfsrmig /getmigrationstate

Success?

dfsrmig /setglobalstate 2
repadmin /syncall /force /APed
dfsrdiag pollad
dfsrmig /getmigrationstate

Success?

dfsrmig /setglobalstate 3
repadmin /syncall /force /APed
dfsrdiag pollad
dfsrmig /getmigrationstate

Success?

Get BIOS version

wmic bios get smbiosbiosversion

Get Dell Service Tag

wmic bios get serialnumber

psexec \\PCNAME cmd above to get it remotely

Get motherboard info

wmic baseboard get product,manufacturer,version,serialnumber

wmic bios get smbiosbiosversion