To Debug this issue i reinstalled Win10 1809 and use only the installed Network driver from Win10 188.8.131.52 and disabled the Windows Firewall.
The Test Setup receiving up to 10 UDP A/V Multicast Transport Streams.
Thease 10 Multicast generate a network traffic around 100mb/s. This is running for minutes without any Packet loss on all 10 streams.
In the Moment i start a copy from a bigger file from my network i have some errors on some Multicast.
The funny thing i only have Packet loss on Multicast ending with odd number.
Means on Mulicast 184.108.40.206, 220.127.116.11 i have errors while on MC 18.104.22.168, 22.214.171.124 there are none.
So i tried on the Ethernet settings and changed the transmitt Buffer from defaut 512to something different with the result that the Packet loss are on the even while the odd do not have any Packet loss again or vice versa.
Transmitt Buffer 80 even have errors, 88 odd have errors, 512 odd have errors, 520 even have errors, 2048 even have errors.
So next Step update driver from 126.96.36.199 to 188.8.131.52 (23.5.2)
After the update i have errors on all Multicast even or odd if i start a TCP transmission.
Any idea is welcome