Invalid username or password

Trying to stream from my macbook, but it keeps asking for a username and password and I don’t have one set up to my knowledge.  I’ve tried leaving the default “anonymous” in with no luck, tried using “admin”, no luck.

Anyone know how to fix this or know what I’m doing wrong?  

Do me a favour and try the last post! I got the same and this seems to work!

AND please check your router log if there is an SMB error with “out of memory” or similar!