We set up an external node with multiple azure app instances monitored via application monitors; each of these were all working fine.
Since we upgraded our environment from 2020.2. to 2020.2.6 last week, all of of these azure application monitors stopped working and show as unreachable. A test of each component in the application monitors shows the following error:
Output: ==============================================
[ERROR] Method 'get_SerializationSettings' in type 'Microsoft.Azure.Management.Internal.Resources.ResourceManagementClient' from assembly 'Microsoft.Azure.Commands.ResourceManager.Common, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' does not have an implementation.
Trying to reconnect..
[ERROR] Method 'get_SerializationSettings' in type 'Microsoft.Azure.Management.Internal.Resources.ResourceManagementClient' from assembly 'Microsoft.Azure.Commands.ResourceManager.Common, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' does not have an implementation.
Trying to reconnect..
[ERROR] Method 'get_SerializationSettings' in type 'Microsoft.Azure.Management.Internal.Resources.ResourceManagementClient' from assembly 'Microsoft.Azure.Commands.ResourceManager.Common, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' does not have an implementation.
Error while connecting
There has been no change on the Azure side that all the Azure parameters used in each of these application monitors (SubID, TennantID, AppID, SecretKey, ResName and ResGroup) are still valid and up to date.
We also tested running the Powershell scripts that these monitors run manually outside of SolarWinds and these also get the same error.
We updated AzureRM module from 6.13.1 to 6.13.2 and this still continued to fail. Opened a case with SolarWinds Support and they have not been able to narrow down a cause nor a resolution.
Has anyone else had a similar issue with Azure PaaS Application monitors breaking / not working after upgrading to version 2020.2.6