Hello Everyone,
Recently MECM is upgraded from 2006 to 2107 with .NET 4.8. After that all clients showing ? question mark icon except 3 or 4 clients in the same hierarchy.
MECM client new version installation is failed . Please see the attached image all the machines are showing the same error also the manual installation is failed with different errors.
All clients are pinging and can access MECM server. After the primary site secondary sites also upgraded but still all the client machines showing ? icon.
Client Communication is HTTP.
All machines can access http://servername/CCM_Client and also able to download ccmsetup.cab but ccmsetup is failed in logs.
Distribution points and the secondary sites is set to Http only
Installation of ccmsetup is immediately failed with 4 errors.

Recently MECM is upgraded from 2006 to 2107 with .NET 4.8. After that all clients showing ? question mark icon except 3 or 4 clients in the same hierarchy.
MECM client new version installation is failed . Please see the attached image all the machines are showing the same error also the manual installation is failed with different errors.
All clients are pinging and can access MECM server. After the primary site secondary sites also upgraded but still all the client machines showing ? icon.
Client Communication is HTTP.
All machines can access http://servername/CCM_Client and also able to download ccmsetup.cab but ccmsetup is failed in logs.
Distribution points and the secondary sites is set to Http only
Installation of ccmsetup is immediately failed with 4 errors.
