ZCC error: Internal Error, Please Contact Administrator.

ZCC that prompt 3005 - Internal Error. The issues according to Zscaler Support related to WMI failing in the Windows system. In order to resolve this issue, the failing WMI need to rebuild the classes back.

Step 1: Right Click on Windows screen then go to New >> Text Document

Step 2: Use below script and paste in text document. Save as 3005 fix.bat in the Desktop


@echo off

sc config winmgmt start= disabled

net stop winmgmt /y


cd %windir%\system32\wbem

for /f %%s in ('dir /b *.dll') do regsvr32 /s %%s

wmiprvse /regserver

winmgmt /regserver

sc config winmgmt start= auto

net start winmgmt

for /f %%s in ('dir /s /b *.mof *.mfl') do mofcomp %%s

Step 3: Clear cache and cookies in browsers under browsing history. For windows 11 please do at Edge and Chrome, and as for Windows 10 please do at IE and Chrome. NOTE: Please Time Range as ALL TIME to fully clean browser cache.

Step 4: Change laptop DNS as below in Ethernet/WiFi adapter that user connecting to internet.

Step : Right Click on 3005 fix.bat file and click Run as administrator. Wait until the process execution completed and the bat file windows close automatically.

Step 4: Search Zscaler and run the program. Enter user ID and user should be able login successfully. NOTE: Once solved the issue, the DNS changed at laptop for step 4 need to select back as "Obtain DNS server address automatically"