Case
You have installed SAP Java Application Server. After all, attempting to access to NWA you get the error:
“Remote access to the NetWeaver Administrator is forbidden.”
Solution
You should comment out the following ICM Rewrite Rules for NWA in file and restart the J2EE server.
/sapmnt/SID/global/security/data/icm_filter_rules.txt
#if %{REMOTE_ADDR} !stricmp 127.0.0.1 [AND]
#if %{REMOTE_ADDR} !stricmp ::1
#RegIRedirectUrl ^/webdynpro/resources/sap.com/tc~lm~itsam~ui~mainframe~wd/(.)*$ /nwa/remote_access_error [QSA]