Instance webserver no longer accessible at corresponding port

OS Name/Version: AMP Release “Triton”

Product Name/Version: v2.3.4.3, built 12/07/2022 13:00

Problem Description:
I was able to access the webserver for an instance at <AMP_Inst_IP>:8084, but now I am no longer able to. I can only access the AMP ADS instance (at <AMP_Inst_IP>:8080) but I cannot access the Minecraft webserver instance at port <AMP_Inst_IP>:8084. I did recently change the IP address of the ADS server and issued the command ampinstmgr repairauth standalone http://localhost:8080 to fix the auth server, but after issuing that command I tested my instance webservers and they were all accessible. I’m not sure what would have changed after that.

Everything looks good in the AMPConfig.ini and instances.json files. How can I debug this?

Actions taken to resolve so far:
I’ve verified IP addresses look good. I can manage the instance via Instance->Manage. I’ve verified the endpoint IP address is set to, and webserver port is indeed set to 8084 (per Instances.json).