IOS Can't assign requested address, errno = 49

App & System Services Core OS
CooperYang OP
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userlog.txt

We've run into some HTTP request errors, details as follows:

  1. We're currently at a loss because restarting the app doesn't help, only rebooting the phone restores things to normal.
  2. Based on tracking data, the occurrence rate for users is about 0.033%, and it's only happening on iOS, Android is fine.
  3. iOS operating system versions: 14-27 are all affected.
  4. The same issue appears in Rust, Flutter, and C/C++.

Rust： 2026-07-11-19:39:22.252+0800|F4E26069-2D7E-4D5F-8B53-664E012B2CA7|UPLogDefaultLogger|DEBUG|测试模式|1023629905|[userdomain_rust/rust_userdomain/src/operator/device_ops/refresh_device_list_op.rs:61]query_device_list error: HttpRequstFaild(Reqwest(reqwest::Error { kind: Request, url: "https://zj.haier.net/api-gw/wisdomdevice/device/v11/family/devices?familyId=ALL&filterFlag=false", source: hyper_util::client::legacy::Error(Connect, ConnectError("tcp connect error", 36.156.179.34:443, Os { code: 49, kind: AddrNotAvailable, message: "Can't assign requested address" })) }))

Flutter： 2026-07-11-15:29:02.718371+0800|b2257ae8-f7d8-41d0-8811-2ff1824f95d9|UpPlugins|ERROR|正常模式|1023629905|level:error tag:smart_home msg:getWholeHousePreferenceSetting err: DioException [unknown]: null Error: SocketException: Connection failed (OS Error: Can't assign requested address, errno = 49), address = zj.haier.net, port = 443

C/C++： 2026-07-11-19:39:15.247588+0800|a991af96-bf02-4b94-a437-d4f7efc249ff|uSDK|ERROR|正常模式|1023629905|[CAE][[cae_sock_no_ssl_last_err:869][connect fd 122 ret -1 err 49: Can't assign requested address] ]

  1. Native iOS HTTP interface requests work fine, for example when using AFNetworking.

Looking for your help~

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IOS Can't assign requested address, errno = 49
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