🐛 Bug Report — disconnected: connect(): Connection refused

Workers rpc requests fail most of the time, suspecting a race condition somewhere. Was hoping you can point me in the right direction with the `disconnected: connect(): Connection refused` stack. On very rare occasions of restarting wrangler for all workers, I can get it to work.

Please let me know what I can do to help!

Here is my wrangler log file:

```
--- 2025-06-04T17:47:43.341Z debug
🪵 Writing logs to "/Users/jeff/Library/Preferences/.wrangler/logs/wrangler-2025-06-04_17-47-43_286.log"
---

--- 2025-06-04T17:47:43.341Z debug
Metrics dispatcher: Posting data {"deviceId":"f79fa222-8b06-4c6a-8d80-debbc0ab78bc","event":"wrangler command started","timestamp":1749059263341,"properties":{"amplitude_session_id":1749059263340,"amplitude_event_id":0,"wranglerVersion":"4.19.1","osPlatform":"Mac OS","osVersion":"Darwin Kernel Version 24.5.0: Tue Apr 22 19:53:27 PDT 2025; root:xnu-11417.121.6~2/RELEASE_ARM64_T6041","nodeVersion":22,"packageManager":"npm","isFirstUsage":false,"configFileType":"jsonc","isCI":false,"isPagesCI":false,"isWorkersCI":false,"isInteractive":false,"hasAssets":false,"argsUsed":["inspectorPort","logLevel","persistTo","port"],"argsCombination":"inspectorPort, logLevel, persistTo, port","command":"wrangler dev","args":{"port":60101,"inspectorPort":9101,"showInteractiveDevSession":false,"persistTo":"","logLevel":"debug","xJsonConfig":true,"j":true,"latest":true,"noBundle":false,"remote":false,"r":false,"testScheduled":false,"xVectorizeBindToProd":false,"xImagesLocalMode":false,"script":""}}}
---

--- 2025-06-04T17:47:43.344Z debug
.env file not found at ".env". Continuing... For more details, refer to https://developers.cloudflare.com/workers/wrangler/system-environment-variables/
---

--- 2025-06-04T17:47:43.364Z log

⛅️ wrangler 4.19.1
───────────────────
---

--- 2025-06-04T17:47:43.375Z log
Using vars defined in .dev.vars
---

--- 2025-06-04T17:47:43.376Z log
Your Worker has access to the following bindings:
---

--- 2025-06-04T17:47:43.376Z log
Binding Resource Mode
---

--- 2025-06-04T17:47:43.376Z log
env.DB (zilly-shared) D1 Database local
---

--- 2025-06-04T17:47:43.376Z log
env.AuthService (zilly-auth-service#AuthService) Worker local [not connected]
---

--- 2025-06-04T17:47:43.376Z log
env.UserService (zilly-user-service#UserService) Worker local [not connected]
---

--- 2025-06-04T17:47:43.376Z log
env.GOOGLE_CLIENT_ID ("(hidden)") Environment Variable local
---

--- 2025-06-04T17:47:43.376Z log
env.GOOGLE_CLIENT_SECRET ("(hidden)") Environment Variable local
---

--- 2025-06-04T17:47:43.376Z log

---

--- 2025-06-04T17:47:43.376Z info

Service bindings, Durable Object bindings, and Tail consumers connect to other `wrangler dev` processes running locally, with their connection status indicated by [connected] or [not connected]. For more details, refer to https://developers.cloudflare.com/workers/runtime-apis/bindings/service-bindings/#local-development

---

--- 2025-06-04T17:47:43.393Z log
Using vars defined in .dev.vars
---

--- 2025-06-04T17:47:43.393Z log
Your Worker has access to the following bindings:
---

--- 2025-06-04T17:47:43.393Z log
Binding Resource Mode
---

--- 2025-06-04T17:47:43.393Z log
env.DB (zilly-shared) D1 Database local
---

--- 2025-06-04T17:47:43.393Z log
env.AuthService (zilly-auth-service#AuthService) Worker local [connected]
---

--- 2025-06-04T17:47:43.393Z log
env.UserService (zilly-user-service#UserService) Worker local [connected]
---

--- 2025-06-04T17:47:43.393Z log
env.GOOGLE_CLIENT_ID ("(hidden)") Environment Variable local
---

--- 2025-06-04T17:47:43.393Z log
env.GOOGLE_CLIENT_SECRET ("(hidden)") Environment Variable local
---

--- 2025-06-04T17:47:43.393Z log

---

--- 2025-06-04T17:47:43.451Z debug
RemoteRuntimeController teardown beginning...
---

--- 2025-06-04T17:47:43.451Z debug
RemoteRuntimeController teardown complete
---

--- 2025-06-04T17:47:43.452Z log
⎔ Starting local server...
---

--- 2025-06-04T17:47:43.456Z debug
[InspectorProxyWorker] handleProxyControllerIncomingMessage {"type":"reloadStart"}
---

--- 2025-06-04T17:47:43.492Z error
✘ [ERROR] workerd/server/server.c++:3884: info: Inspector is listening

---

--- 2025-06-04T17:47:43.504Z debug
[InspectorProxyWorker] handleProxyControllerIncomingMessage {"type":"reloadComplete","proxyData":{"userWorkerUrl":{"protocol":"http:","hostname":"127.0.0.1","port":"64582"},"userWorkerInspectorUrl":{"protocol":"ws:","hostname":"127.0.0.1","port":"64580","pathname":"/core:user:zilly-core-service"},"userWorkerInnerUrlOverrides":{"protocol":"http:"},"headers":{"MF-Proxy-Shared-Secret":"c8f54d9d-17ec-40bd-94c2-2100d090ebc5"},"liveReload":false,"proxyLogsToController":false,"internalDurableObjects":[],"entrypointAddresses":{"default":{"host":"127.0.0.1","port":64583}}}}
---

--- 2025-06-04T17:47:43.505Z error
✘ [ERROR] workerd/server/server.c++:1338: info: Inspector client attaching [core:user:zilly-core-service]

---

--- 2025-06-04T17:47:43.506Z debug
[InspectorProxyWorker] RUNTIME INCOMING MESSAGE {
method: 'Runtime.executionContextCreated',
params: {
context: {
id: 534303329,
origin: '',
name: 'Worker',
uniqueId: '-9195607250484969667.-7819388878185867654'
}
}
}
---

--- 2025-06-04T17:47:43.506Z debug
[InspectorProxyWorker] reconnectRuntimeWebSocket
---

--- 2025-06-04T17:47:43.506Z debug
[InspectorProxyWorker] NEW RUNTIME WEBSOCKET http://127.0.0.1:64580/core:user:zilly-core-service
---

--- 2025-06-04T17:47:43.507Z debug
[InspectorProxyWorker] SEND TO DEVTOOLS {"method":"Runtime.executionContextsCleared"}
---

--- 2025-06-04T17:47:43.507Z debug
[InspectorProxyWorker] RUNTIME WEBSOCKET OPENED
---

--- 2025-06-04T17:47:43.508Z debug
[InspectorProxyWorker] SEND TO RUNTIME {"method":"Runtime.enable","id":100000001}
---

--- 2025-06-04T17:47:43.508Z debug
[InspectorProxyWorker] SEND TO RUNTIME {"method":"Debugger.enable","id":100000002}
---

--- 2025-06-04T17:47:43.508Z debug
[InspectorProxyWorker] SEND TO RUNTIME {"method":"Network.enable","id":100000003}
---

--- 2025-06-04T17:47:43.509Z debug
[InspectorProxyWorker] RUNTIME INCOMING MESSAGE { id: 100000001, result: {} }
---

--- 2025-06-04T17:47:43.520Z debug
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--- 2025-06-04T17:47:43.521Z debug
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--- 2025-06-04T17:47:43.521Z debug
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--- 2025-06-04T17:47:43.521Z debug
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--- 2025-06-04T17:47:43.521Z debug
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--- 2025-06-04T17:47:43.521Z debug
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--- 2025-06-04T17:47:43.522Z debug
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--- 2025-06-04T17:47:43.522Z debug
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--- 2025-06-04T17:47:43.522Z debug
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--- 2025-06-04T17:47:43.522Z debug
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--- 2025-06-04T17:47:43.525Z debug
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--- 2025-06-04T17:47:43.525Z debug
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--- 2025-06-04T17:47:43.525Z debug
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--- 2025-06-04T17:48:35.129Z debug
workerd/jsg/util.c++:322: info: exception = kj/async-io-unix.c++:1524: disconnected: connect(): Connection refused
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--- 2025-06-04T17:48:35.145Z error
✘ [ERROR] Error: Network connection lost.

at async getUserLessonStatus (file:///Users/jeff/Projects/zilly/packages/api/dist/learning/learning.core.js:18:26)
at async getUserLessonStatusHandler (file:///Users/jeff/Projects/zilly/packages/api/dist/learning/learning.router.js:48:26)
at async dispatch (file:///Users/jeff/Projects/zilly/node_modules/hono/dist/compose.js:22:17)
at null. (async file:///Users/jeff/Projects/zilly/apps/core-service/.wrangler/tmp/dev-GpwmVR/server.js:2862:5)
at async dispatch (file:///Users/jeff/Projects/zilly/node_modules/hono/dist/compose.js:22:17)
at null. (async file:///Users/jeff/Projects/zilly/apps/core-service/.wrangler/tmp/dev-GpwmVR/server.js:8774:3)
at async dispatch (file:///Users/jeff/Projects/zilly/node_modules/hono/dist/compose.js:22:17)
at async contextStorage2 (file:///Users/jeff/Projects/zilly/node_modules/hono/dist/middleware/context-storage/index.js:6:5)
at async dispatch (file:///Users/jeff/Projects/zilly/node_modules/hono/dist/compose.js:22:17)
at async cors2 (file:///Users/jeff/Projects/zilly/node_modules/hono/dist/middleware/cors/index.js:74:5) {
retryable: true
}

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```