increase the maximum possible payload size for deployr server (hosted via apache tomcat7)

I have a service hosted by deployr. I am getting a connection reset by peer error. I know my payload size is above 2MB - the default limit as mentioned by Microsoft here:

https://support.microsoft.com/en-in/help/3104183/large-text-robjects-with-deployr-cause-script-to-fail

However, when I try to implement the above fix, the service becomes inactive and I am unable to login to the admin console even though the logs report that the service has started.