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Hey John, thanks for your reply. FSUIPC exited, but MSFS was still running. The idea of the disabled MSFS monitor sounds good, but do I always have to switch the monitoring function off every time I use MSFS?

Hey, it happens very often, but fsuipc keeps switching itself off while still in flight. What to do? Here are the previous logs. ********* FSUIPC7, Version 7.5.4 (13th July 2025) by John Dowson ********* WebSocket server found: F:\FSUIPC7\\Utils\FSUIPCWebSocketServer.exe Windows 10 Pro 64 Bit reported as Build 21996, Release ID: 2009 (OS 10.0) FSUIPC is running with standard privileges Reading options from "F:\FSUIPC7\FSUIPC7.ini" Checking the Registrations now ... User Name="" User Addr="" FSUIPC7 not user registered WIDEFS7 not user registered, or expired 63 System time = 13/08/2025 11:11:27 63 Allowing calibration when not assigned with 'Send direct to FSUIPC Calibration' 63 ------------------------------------------------------------------- 94 *** Preset name 'Cirrus_SF50_Vision_Jet__MSFS2024_-_Toggle_VNV_Button_in_Autopilot_On_and_OFF' exceeds max allowed length of 63 characters - ignoring 547 *** Preset name 'NAV_GPS_SWAP__NAV__button_on_EFIS_Control_Panel__LEFT_SIDE__CAPTAIN_' exceeds max allowed length of 63 characters - ignoring 547 *** Preset name 'NAV_GPS_SWAP__NAV__button_on_EFIS_Control_Panel__RIGHT__SIDE__FIRST_OFFICER_' exceeds max allowed length of 63 characters - ignoring 547 *** Preset name 'Main_instrument_panel_standby_attitude_indicator_cage_button_release' exceeds max allowed length of 63 characters - ignoring 594 Preset file 'F:\FSUIPC7\myevents.txt' not found [info only] 594 19666 Calculator Code presets have been loaded and are available for use 891 Registered HotKey 'InvokeFSUIPCOptionsKey' (key=0x46, modifier=0x1) 907 FS path = "" 922 LogOptions=00000000 00000001 922 Auto-started via EXE.xml with DetectToConnectDelayAuto=425, InitialStallTime=15 3610 Simulator detected 428610 Trying to connect... 428610 SimConnect_Open succeeded 428625 Running in "KittyHawk", Version: 11.0.282174.999 (SimConnect: 11.0.62651.3) 428625 MSFS version = 11.0.282174.999 428625 MSFS2020 Steam installation detected: 428625 Checking for FS path in 'F:\karel\AppData\Roaming\Microsoft Flight Simulator\UserCfg.opt' 428625 FS path found = V:\MSFS\ 428625 FLT path = "F:\karel\AppData\Roaming\Microsoft Flight Simulator\" 428625 FS path = "V:\MSFS\" 428625 Initialising SimConnect data requests now 428625 Offset file 'F:\FSUIPC7\myOffsets.txt' not found (info only) 428625 Number of FS control/events registered : 1795 428625 Mapping custom control numbers 69632 - 84232 (maximum defined by ini parameter MaxCustomControlNumber, defaults to 84232 when not present) 428641 Maximum number of custom events available is 1024 (defined by ini parameter MaxNumberOfCustomEvents) 428641 F:\karel\AppData\Roaming\Microsoft Flight Simulator\MISSIONS\Custom\CustomFlight\CustomFlight.FLT 428719 User Aircraft ID 1 supplied, now being used (myftm=1) 428719 Requesting keyboard input... 428719 Requesting user aircraft data... 428719 PMDG 777 offsets enabled 428907 Aircraft loaded: running normally now ... 429157 System time = 13/08/2025 11:18:36, Simulator time = 11:18:19 (09:18Z) 429157 Requesting Input Events.... 429157 -------------------- Starting everything now ---------------------- 429157 Starting WAPI.... 429157 [INFO]: **** Starting FSUIPC7 WASM Interface (WAPI) version 1.0.4 (WASM version 1.0.7) using connection -1 429172 [INFO]: Connected to MSFS 429188 **** Empty enumeration of Input Events received - no input events available **** 429235 Lvars received: 2661 L:vars & 0 H:vars now available 21326938 MSFS no longer running - exiting 21326938 === Hot key unregistered 21326938 === Stop called ... 21326969 === Closing external processes we started ... 21327469 === About to kill any Lua plug-ins still running ... 21328375 === About to kill my timers ... 21328375 === Restoring window procs ... 21328375 === Unloading libraries ... 21328375 === stopping other threads ... 21328375 === ... Button scanning ... 21328485 === ... Axis scanning ... 21328594 === Releasing joystick devices ... 21328594 === Freeing macro memory 21328594 === Removing any offset overrides 21328594 === Clearing any displays left 21328594 === Calling SimConnect_Close ... 21328828 **** PMDG777Thread finished ***** 21328907 === SimConnect_Close done! 21328907 === AI slots deleted! 21328907 === Freeing button memory ... 21328907 === Closing my Windows ... 21328922 === Freeing FS libraries ... 21329922 === Closing devices ... 21329922 === Closing the Log ... Bye Bye! ... 21329922 System time = 13/08/2025 17:06:56 21329922 *** FSUIPC log file being closed Minimum frame rate was 21.4 fps, Maximum was 48.1 fps Average frame rate for running time of 20898 secs = 37.1 fps Maximum AI traffic for session was 9 aircraft Traffic deletions 0 aircraft Memory managed: 2 Allocs, 1 Freed ********* FSUIPC Log file closed ***********

Het John thanks for the quick response. FSUIPC starts automatically when I start MSFS. I use the pegasus logger, and since I know FSUIPC stops working sometimes, I regularly check pegasus if it still has some connection. It also has a log part on it and there I check the connection. If lost FSUIPC shuts (itself?) down. I go to the FSUIPC folder and when I start the FSUIPC7.exe by hand, pegasus can reconnect again. I will attach the previous logs. If you need more info, please let me know. FSUIPC7_prev.log InstallFSUIPC7.log

*** Moved to FSUIPC7 / MSFS support sub-forum *** Hey, for some time FSUIPC stops every now and then during the flight. It doesn't give any notice nor a crash notification in the event viewer. Today, for example, it stopped at 13:38, but nothing was to be seen in the logs of the event viewer. I use fsuipc for the connection with the vamsys pegasus program. I can restart FSUIPC and connect again, but maybe there is an easy fix to prevent a problem in the first place. Since there are no logs to share, I attached the logs. Regards 😉 FSUIPC7.log