The message timed out in the backlog attempting to send because no connection became available (3000ms) - Last Connection Exception: It was not possible to connect to the redis server(s). ConnectTimeout, command=EVAL, timeout: 3000, inst: 0, qu: 1, qs: 0, aw: False, bw: SpinningDown, rs: NotStarted, ws: Idle, in: 0, last-in: 0, cur-in: 0, sync-ops: 7, async-ops: 1, serverEndpoint: qfstest.redis.cache.windows.net:6380, conn-sec: n/a, aoc: 0, mc: 1/1/0, mgr: 10 of 10 available, clientName: dw1sdwk0008GT(SE.Redis-v2.8.0.27420)(Microsoft.Web.RedisSessionStateProvider-v5.1.0.0), IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=1,Free=32766,Min=1,Max=32767), v: 2.8.0.27420 (Please take a look at this article for some common client-side issues that can cause timeouts: https://stackexchange.github.io/StackExchange.Redis/Timeouts)