Modem Reboot Error: Failed to Obtain Write lock on IM
Today morning my BSNL modem showed a new error message after rebooting. The error message is Web Server: Failed to obtain a write lock on IM with the time in seconds. All I did was some changes in the wireless settings of the modem. After changing the settings I rebooted the modem as prescribed by the modem user manual. However, I reached the error/warning page instead of the configuration page. The error message is provided below.

The solution for "Failed to Obtain Write lock on IM"
Unfortunately, I couldn't find much information regarding this error message. So all I did was to perform a proper power cycle and check the modem. After the power cycle modem came back to the normal stage.
If you are looking for steps to perform a power cycle, follow the link below.
How to Power Cycle a Modem

The solution for "Failed to Obtain Write lock on IM"
Unfortunately, I couldn't find much information regarding this error message. So all I did was to perform a proper power cycle and check the modem. After the power cycle modem came back to the normal stage.
If you are looking for steps to perform a power cycle, follow the link below.
How to Power Cycle a Modem