Logon type 3 means network logon.
0xC0000064 - "User logon with misspelled or bad user account".
0x6 KDC_ERR_C_PRINCIPAL_UNKNOWN implies Service Principal Name (SPN) access problem.
It seems that you logon to DC-CH-2 over network but as the computer account and Kerberos does not accept username (in this case computer$ account).
Pls chk the time sync between the computers involved in the script. This should be at most 5 mins (Kerberos req) Is it GMT-7 for the server settings, I have seen 7 hrs difference in the logs.
Pls run dcdiag on DC-CH-2 to see any major issues.
Check DC-CH-2 computer secure channel with PDC Emulator role: netdom verify /d:.
If there is a problem with secure channel should be reset or if this is a Domain Controller, this role may need to be reinstalled.