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If you mean, that as soon as you enable remote logging, authentication starts failing, then there are some issues with remote logging.
Also consider upgrading to latest ACS version, rather then being on 4.0(1)
CSCeg40355 : Authentication failures when remote logging fails
I am pretty sure its resolved in 4.1.1
Be sure to use same remote agent version, as your ACS server software version.
Make sure that Remote Agent is also for 220.127.116.11 and patched with patch 4. If you are not sure about that un-install it and install 18.104.22.168 RA and patch it with Patch 4.
Make sure that Critical logging is set to Local CSV, from,
System Configuration > Logging > Critical Loggers Configuration
You can also try upgrading to version 4.1.3 that is available.
If you dont have any luck with remote logging try extraxi csvsync.
Csvsync can download CSVs on a scheduled bulk pull. Works with any number of ACSs, any version, any platform (Windows or SE)
Supports http & https, doesnt mandate a server OS and there's no agents etc.