Standalone Replication stuck at 20% - SSL warning on the destination server

Products

• Inventory Solution

Issue/Introduction

Replication fails due to the destination server failing to report back due to SSL error.

Environment

ITMS 8.7.x

Cause

Following .NET changes were introduced on one server but not another:

New-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\.NETFramework\v2.0.50727" -Name "SystemDefaultTlsVersions" -Value "1" -PropertyType DWORD -Force

New-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\.NETFramework\v2.0.50727" -Name "SchUseStrongCrypto" -Value "1" -PropertyType DWORD -Force

 

New-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\.NETFramework\v4.0.30319" -Name "SystemDefaultTlsVersions" -Value "1" -PropertyType DWORD -Force

New-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\.NETFramework\v4.0.30319" -Name "SchUseStrongCrypto" -Value "1" -PropertyType DWORD -Force

 

 

New-ItemProperty -Path "HKLM:\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v2.0.50727" -Name "SystemDefaultTlsVersions" -Value "1" -PropertyType DWORD -Force

New-ItemProperty -Path "HKLM:\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v2.0.50727" -Name "SchUseStrongCrypto" -Value "1" -PropertyType DWORD -Force

 

New-ItemProperty -Path "HKLM:\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v4.0.30319" -Name "SystemDefaultTlsVersions" -Value "1" -PropertyType DWORD -Force

New-ItemProperty -Path "HKLM:\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v4.0.30319" -Name "SchUseStrongCrypto" -Value "1" -PropertyType DWORD -Force

 

Other TLS settings (TLS 1.2 only and required cipher suites **ECDHE***) identical on both machines.

Resolution

Apply .net registry changes on both machines that are participating in the standalone replication process.