Question / Help Getting Error when trying to do multicast stream via Start Recording

[Fortinbra]

I followed the instructions on how to setup a computer to computer multicast stream. I have only a single scene, with a single source in it, capturing the display. Preview loads fine, disabling preview doesn't help. Graphics and NIC drivers have been updated to latest.

The display I'm attempting to capture is output 1 in the log.

Am I missing anything?

Spoiler: Log

06:29:28.646: CPU Name: Intel(R) Core(TM) i5-3570S CPU @ 3.10GHz
06:29:28.647: CPU Speed: 3093MHz
06:29:28.647: Physical Cores: 4, Logical Cores: 4
06:29:28.647: Physical Memory: 6030MB Total, 3714MB Free
06:29:28.647: Windows Version: 10.0 Build 14393 (revision: 693; 64-bit)
06:29:28.647: Running as administrator: true
06:29:28.647: Aero is Enabled (Aero is always on for windows 8 and above)
06:29:28.647: Portable mode: false
06:29:28.667: OBS 17.0.2 (64bit, windows)
06:29:28.667: ---------------------------------
06:29:28.667: ---------------------------------
06:29:28.667: audio settings reset:
06:29:28.667: samples per sec: 44100
06:29:28.667: speakers: 2
06:29:28.668: ---------------------------------
06:29:28.668: Initializing D3D11..
06:29:28.668: Available Video Adapters:
06:29:28.670: Adapter 1: Intel(R) HD Graphics
06:29:28.670: Dedicated VRAM: 33554432
06:29:28.670: Shared VRAM: 1845493760
06:29:28.670: output 1: pos={0, 0}, size={1680, 1050}, attached=true
06:29:28.670: output 2: pos={1680, 27}, size={1280, 1024}, attached=true
06:29:28.672: Loading up D3D11 on adapter Intel(R) HD Graphics (0)
06:29:28.677: D3D11 loaded sucessfully, feature level used: 45056
06:29:29.127: ---------------------------------
06:29:29.127: video settings reset:
06:29:29.127: base resolution: 1680x1050
06:29:29.127: output resolution: 1120x700
06:29:29.127: downscale filter: Bicubic
06:29:29.127: fps: 30/1
06:29:29.127: format: NV12
06:29:29.128: ---------------------------------
06:29:29.131: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/chrome_elf.dll' not found, loading of module failed
06:29:29.132: [CoreAudio encoder]: CoreAudio AAC encoder not installed on the system or couldn't be loaded
06:29:29.133: [AMF Encoder] Unable to load 'amfrt64.dll', error code 126.
06:29:29.140: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libcef.dll' not found, loading of module failed
06:29:29.141: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libEGL.dll' not found, loading of module failed
06:29:29.141: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libGLESv2.dll' not found, loading of module failed
06:29:29.142: Failed to load 'en-US' text for module: 'obs-browser.dll'
06:29:29.142: [browser_source: 'Version: 1.28.0']
06:29:29.143: LoadLibrary failed for 'nvEncodeAPI64.dll': The specified module could not be found.
06:29:29.143: (126)
06:29:29.155: Couldn't find VLC installation, VLC video source disabled
06:29:29.159: No blackmagic support
06:29:29.259: ---------------------------------
06:29:29.259: Loaded Modules:
06:29:29.259: win-wasapi.dll
06:29:29.259: win-mf.dll
06:29:29.259: win-dshow.dll
06:29:29.259: win-decklink.dll
06:29:29.259: win-capture.dll
06:29:29.259: vlc-video.dll
06:29:29.259: text-freetype2.dll
06:29:29.259: rtmp-services.dll
06:29:29.259: obs-x264.dll
06:29:29.259: obs-transitions.dll
06:29:29.259: obs-text.dll
06:29:29.259: obs-qsv11.dll
06:29:29.259: obs-outputs.dll
06:29:29.259: obs-filters.dll
06:29:29.259: obs-ffmpeg.dll
06:29:29.259: obs-browser.dll
06:29:29.259: image-source.dll
06:29:29.259: frontend-tools.dll
06:29:29.259: enc-amf.dll
06:29:29.259: coreaudio-encoder.dll
06:29:29.259: ==== Startup complete ===============================================
06:29:29.259: Service '' not found
06:29:29.260: All scene data cleared
06:29:29.260: ------------------------------------------------
06:29:29.302: WASAPI: Device 'Speakers (Realtek High Definition Audio)' initialized
06:29:29.315: WASAPI: Device 'Headset Microphone (2- Voice Tracker II)' initialized
06:29:29.321: Switched to scene 'Scene'
06:29:29.321: ------------------------------------------------
06:29:29.321: Loaded scenes:
06:29:29.321: - scene 'Scene':
06:29:29.321: - source: 'Display Capture' (monitor_capture)
06:29:29.321: ------------------------------------------------
06:29:29.335: adding 23 milliseconds of audio buffering, total audio buffering is now 23 milliseconds
06:29:29.547: Update check: last known remote version is 17.0.2
06:29:35.242: rtmp-common.c: [initialize_output] Could not find service ''
06:29:35.248: ==== Recording Start ===============================================
06:29:35.303: receive_audio: Error writing packet: Error number -10065 occurred
06:29:35.303: Output 'adv_ffmpeg_output': stopping
06:29:35.303: Output 'adv_ffmpeg_output': Total encoded frames: 2
06:29:35.303: Output 'adv_ffmpeg_output': Total drawn frames: 2
06:29:35.303: ==== Recording Stop ================================================

 

[Fortinbra]

In the event that someone else receives this message, I'll add what I did to fix it.

Following the instructions on how to setup a computer to computer multicast, instead of using udp://224.0.01:9999 I used udp://226.0.0.1:9988 and everything started working for me.

 

[ICAN]

I tried using 239.1.1.1:9000, and the application crashes repeatedly.
Crash dump attached.

Will there be any constraint in using this IP address?
Would using the studio mode instead of the normal mode cause any constraint?

Help would be greatly appreciated.