This fix is to address time outs with Direct Line causing a 500:Connect ETIMEDOUT error under high loads – Use the AgentKeepAlive NPM module to ensure re-use of the SSL connections Tune the MaxSockets parameter of the AgentKeepAlive instance to be at least 160 to match the number of SNAT port. const Agent = require(‘agentkeepalive’); const keepaliveAgent = new Agent({….