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Hi All, We have recently implemented the Network API for TLS in lieu of CocoaAsyncSocket, and our connection seems steady for long periods of time, until we start receiving a flood of error messages that I can't find any documentation or evidence for online either in Apple docs or Stack or etc. Does anyone have any insight into what Network.NWError error 0 entails? I will include some sample logs below to illustrate just how frequently we are seeing this within a small time frame. 2021-08-19 06:11:48.898 MST Debug - [ns:AppDelegate] [[[[["NTWK: Closing..."]]]]] close(shouldAutoReconnect:)@185::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.898 MST Debug - [ns:AppDelegate] [[[[["NTWK: Receive Fail"]]]]] setupReceive()@266::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.899 MST Debug - [ns:AppDelegate] [[[[["NTWK: TCP socketDidDisconnect error: The operation couldn’t be completed. (Network.NWError error 0.)"]]]]] connectionDidFail(error:)@277::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.900 MST Debug - [ns:AppDelegate] [[[[["NTWK: Closing..."]]]]] close(shouldAutoReconnect:)@185::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.900 MST Debug - [ns:AppDelegate] [[[[["NTWK: Receive Fail"]]]]] setupReceive()@266::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.901 MST Debug - [ns:AppDelegate] [[[[["NTWK: TCP socketDidDisconnect error: The operation couldn’t be completed. (Network.NWError error 0.)"]]]]] connectionDidFail(error:)@277::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.902 MST Debug - [ns:AppDelegate] [[[[["NTWK: Closing..."]]]]] close(shouldAutoReconnect:)@185::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.903 MST Debug - [ns:AppDelegate] [[[[["NTWK: Receive Fail"]]]]] setupReceive()@266::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.903 MST Debug - [ns:AppDelegate] [[[[["NTWK: TCP socketDidDisconnect error: The operation couldn’t be completed. (Network.NWError error 0.)"]]]]] connectionDidFail(error:)@277::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.904 MST Debug - [ns:AppDelegate] [[[[["NTWK: Closing..."]]]]] close(shouldAutoReconnect:)@185::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.905 MST Debug - [ns:AppDelegate] [[[[["NTWK: Receive Fail"]]]]] setupReceive()@266::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.905 MST Debug - [ns:AppDelegate] [[[[["NTWK: TCP socketDidDisconnect error: The operation couldn’t be completed. (Network.NWError error 0.)"]]]]] connectionDidFail(error:)@277::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.906 MST Debug - [ns:AppDelegate] [[[[["NTWK: Closing..."]]]]] close(shouldAutoReconnect:)@185::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.907 MST Debug - [ns:AppDelegate] [[[[["NTWK: Receive Fail"]]]]] setupReceive()@266::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.908 MST Debug - [ns:AppDelegate] [[[[["NTWK: TCP socketDidDisconnect error: The operation couldn’t be completed. (Network.NWError error 0.)"]]]]] connectionDidFail(error:)@277::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.908 MST Debug - [ns:AppDelegate] [[[[["NTWK: Closing..."]]]]] close(shouldAutoReconnect:)@185::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.909 MST Debug - [ns:AppDelegate] [[[[["NTWK: Receive Fail"]]]]] setupReceive()@266::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.910 MST Debug - [ns:AppDelegate] [[[[["NTWK: TCP socketDidDisconnect error: The operation couldn’t be completed. (Network.NWError error 0.)"]]]]] connectionDidFail(error:)@277::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.911 MST Debug - [ns:AppDelegate] [[[[["NTWK: Closing..."]]]]] close(shouldAutoReconnect:)@185::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.911 MST Debug - [ns:AppDelegate] [[[[["NTWK: Receive Fail"]]]]] setupReceive()@266::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.912 MST Debug - [ns:AppDelegate] [[[[["NTWK: TCP socketDidDisconnect error: The operation couldn’t be completed. (Network.NWError error 0.)"]]]]] connectionDidFail(error:)@277::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.913 MST Debug - [ns:AppDelegate] [[[[["NTWK: Closing..."]]]]] close(shouldAutoReconnect:)@185::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.914 MST Debug - [ns:AppDelegate] [[[[["NTWK: Receive Fail"]]]]] setupReceive()@266::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.914 MST Debug - [ns:AppDelegate] [[[[["NTWK: TCP socketDidDisconnect error: The operation couldn’t be completed. (Network.NWError error 0.)"]]]]] connectionDidFail(error:)@277::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.915 MST Debug - [ns:AppDelegate] [[[[["NTWK: Closing..."]]]]] close(shouldAutoReconnect:)@185::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.916 MST Debug - [ns:AppDelegate] [[[[["NTWK: Receive Fail"]]]]] setupReceive()@266::<PrivoroTCP.PrivoroTCPClient: 0x283935110> 2021-08-19 06:11:48.917 MST Debug - [ns:AppDelegate] [[[[["NTWK: TCP socketDidDisconnect error: The operation couldn’t be completed. (Network.NWError error 0.)"]]]]] connectionDidFail(error:)@277::<PrivoroTCP.PrivoroTCPClient: 0x283935110> Thanks for any help!