Hello again
Regarding the UDP buffer space error on MacOS , increasing the buffer size from 8MB to 16MB made so much improvement the error is still appearing but much less than before , for setting a bigger buffer size than 16MB the kern.ipc.nmbclusters must be increased before , but the problem it's read only , and I tried nvram boot-args="ncl=262144" but checking kern.ipc.nmbclusters: 131072 so I still can't figure how to sort this out but it seems increasing the buffer size is a workaround/solution .