Customization times out majorly due to following reasons. Please check below services are working fine:

• DNS issue.   <======================original vm and clone vm got dns 192.168.1.196 and re
• DHCP issues as machines do not get a valid IP. <<===== the vm get 192.168.1.23
• Check if machines are getting joined to domain or not.User account used for linked clone operation does not have sufficient permission to join machine in domain. Check Create a User Account for View Composer AD Operations​   <============== by vcenter's access, clone vm got dns network. (ex. DESKTOP-1******.ws1.com)
• License activation issues (Skip license activation through registry on master image and test : VMware Knowledge Base )     <============== i did it. not work.
• Issue with Sysprep script if you are using sysprep instead of quickprep. <========= i use quickprep
• If you are using quickprep for guest customization, provide the below log from the linked clone VM where you see 'customization timed out':

   %system_drive%\Windows\Temp\VMware\vmware-viewcomposer-ga-new.log  <<<<<================ attached.. i'm looking the log