Any ColdFusion website or service connected to a cluster that has 10 or more instances, IIS and/or Apache stops working.
Download the 32-bit/64-bit
Note: For Apache, do not download and replace the dlls.
For IIS: In the isapi_redirect.properties file, set max_workers_per_lb=number of instances in the cluster.
For Apache: In the mod_jk.conf
The values you set represents the maximum number of instances in the cluster. If you add more clusters, the connectors stop working.
After making the updates, restart the webserver.