After a few days of reading on the internet (I dont know any thing about linux)
And after several reinstals, I found out the problems.
1: I have 2 routers on one network switch,disconnected one router,and the problem of player not found was gone.
2: The main problem after update or reinstall was ,,NO SOUND,,
After a lot of reading i installed PUTTY,to SSH M2P.
Gave the command ,,alsamixer,, then F6 to sellect USB audio.
I had to UNMUTE the USB audio with the ,,m,, on the keybord!!!
I HAVE SOUND ,
To be sure,I reinstaled M2P on other SSD carts,all work after UNMUTING in SSH.
