@eruthon Checked multicast functionality after disabling SMB, and set a queue size of 2. However, imaging started without waiting for the second PC and failed, as indicated in the screenshot below.
11-21-23 12:24 Starting Multicast Session With The Following Command: cmd.exe /c ""C:\Program Files\Theopenem\Toec-API\\private\apps\udp-sender.exe" --file "D:\toems_local_storage\images\dev_01_MyApps_Win11_CP941\hd0\part2.winpe.wim" --portbase 9028 --min-receivers 2 --ttl 32 --interface 10.38.40.113 --mcast-rdv-address 224.0.0.1 --log D:\multicast.log & "C:\Program Files\Theopenem\Toec-API\\private\apps\udp-sender.exe" --file "D:\toems_local_storage\images\dev_01_MyApps_Win11_CP941\hd0\part3.winpe.wim" --portbase 9028 --min-receivers 2 --ttl 32 --interface 10.38.40.113 --mcast-rdv-address 224.0.0.1 --log D:\multicast.log & "C:\Program Files\Theopenem\Toec-API\\private\apps\udp-sender.exe" --file "D:\toems_local_storage\images\dev_01_MyApps_Win11_CP941\hd0\part4.winpe.wim" --portbase 9028 --min-receivers 2 --ttl 32 --interface 10.38.40.113 --mcast-rdv-address 224.0.0.1 --log D:\multicast.log"J