Failed to upgrade SharePoint Products.

Tevon2.0 1,101

This is a critical task. You have to fix the failures before you can continue. Follow this link for more information about how to troubleshoot upgrade failures: https://go.microsoft.com/fwlink/?LinkId=866803

An exception of type Microsoft.SharePoint.PostSetupConfiguration.PostSetupConfigurationTaskException was thrown.  Additional exception information: 
Failed updating SecurityMode and ProtectionLevel in cluster. [Exception=System.Management.Automation.CmdletInvocationException: ErrorCode<ERRCAdmin040>:SubStatus<ES0001>:Failed to connect to hosts in the cluster ---> Microsoft.ApplicationServer.Caching.DataCacheException: ErrorCode<ERRCAdmin040>:SubStatus<ES0001>:Failed to connect to hosts in the cluster   --- End of inner exception stack trace ---]	(EventID:4wtrk)

Upgrade completed with errors.  Review the upgrade log file located in C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\LOGS\Upgrade-20230524-154237-589-98468f2605494955acf98ba6506e7d18.log.  The number of errors and warnings is listed

Yanli Jiang - MSFT 21,606 Reputation points Microsoft Vendor

2023-05-25T04:30:58.02+00:00

Hi Tevon ,

This issue is relatively complicated and I could not get some inspiration according to the error message. So there need more information to make the issue more clearly to help resolve the issue.

Do you make the upgrade follow the article totally?

As the message said: "Review the upgrade log file located in C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\LOGS\Upgrade-20230524-154237-589-98468f2605494955acf98ba6506e7d18.log. The number of errors and warnings is listed." Please check the upgrade log file and put the related log there.
Tevon2.0 1,101 Reputation points

2023-05-26T16:00:32.34+00:00

What do you need me to provide?
Yanli Jiang - MSFT 21,606 Reputation points Microsoft Vendor

2023-05-29T09:43:08.4666667+00:00

The upgrade log file.