Cannot establish NTLM authentication channel with + SFOS 17.5.MR15+Cyberoam

Question

We got an error "Cannot establish NTLM authentication channel with <Domain>" in the Cyberoam 300ing, where CTAS and NTLM authentication both are working , NTLM was enabled because many of the domain user are not getting the services of web proxy , Support has declined to further help as Cyberoam 300ing has become EOL, I have tried one of the solution found in the blogs, stop the nasm service and remove the nasm directory contents in the log folder , but got an error 
 CR300iNG_WP01_SFOS 17.5.15 MR-15# service -ds nosync nasm:stop 200 OK 
 CR300iNG_WP01_SFOS 17.5.15 MR-15# rm -rf /content/nasm rm: can't remove '/content/nasm/cfs': Device or resource busy rm: can't remove '/content/nasm': Directory not empty 
 I have tried to kill the process IDs which were using the directory, also unchecked the device access methods NTLM in the administration, but couldn't succeed > 
 Can you help ???

emmosophos · Answer

Hello Muhammad, 
 Thank you for contacting the Sophos Community. 
 May know the Case ID you opened with us related to this issue, even though it&rsquo;s a Cyberoam device, if it&rsquo;s running a supported SFOS version, support will be provided until the EoL. 
 Can you provide the output of the following commands from the Advanced Shell # cd /content/nasm/ # ls # cd /content/nasm/tmp/ # ls 
 Regards,

emmosophos · Answer

Hello Muhammad, 
 Thank you for the follow-up. 
 Please run the following commands from the Advanced Shell of the XG: 
 1. cd /content/nasm/ 2. mkdir tmp 3. chown nasm:nasm tmp 4. service -ds nosync nasm:start 5. service -ds nosync nasm:status (Check the nasm.log and the status of the services, that should be running) 6. service -ds nosync awarrenhttp:start 7. service -ds nosync awarrenhttp:status 
 If this fails: 
 Go to Backup and Firmware, Firmware tab. On the line for the active firmware, click the arrows that have the tooltip "Boot firmware image" The box will reboot and the nasm directory should be recreated. 
 Regards,

Cannot establish NTLM authentication channel with <Domain> + SFOS 17.5.MR15+Cyberoam