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Getting error "Unable to join player connection multicast group." on every project load

Discussion in 'Editor & General Support' started by Gru, Jul 22, 2015.

  1. Gru

    Gru

    Joined:
    Dec 23, 2012
    Posts:
    142
    After opening any project i get these errors (Windows 7 x64; Unity 5.1.0.f3):
    Socket: unable to join multicast group, error: The requested address is not valid in its context.
    (0)
    Unable to join player connection multicast group.
    Socket: unable to join multicast group, error: The requested address is not valid in its context.
    (0)
    Unable to join player connection alternative multicast group.

    I have tried refreshing the license, and creating a new licence; as well as installing Web player as suggested here:
    http://forum.unity3d.com/threads/socket-unable-to-join-multicast-group.164413/

    If I start windows without network cable connected and run Unity, this does not appear. After I plug the network back in, and open any project, I get these errors again. I'm sure it has something to do with the new router that was set up by my ISP. I tried to search online, and have found nothing of use, and tried Enabling IGMP Configuration on the router, which didn't help. Temporarily disabling the Firewall also didn't help.

    I did send the bug via Editor form. However, someone here may have some advice to share.
     
    Gru, Jul 22, 2015
    #1

  2. mikiqex

    mikiqex

    Joined:
    Apr 23, 2015
    Posts:
    3
    The same here, same errors on every Unity Editor start since I installed 5.3.0f4.
     
    mikiqex, Dec 17, 2015
    #2

  3. Gru

    Gru

    Joined:
    Dec 23, 2012
    Posts:
    142
    For me, this just went away by itself. Not sure what it was...
     
    Gru, Dec 18, 2015
    #3

  4. fangwenbo

    fangwenbo

    Joined:
    Sep 23, 2016
    Posts:
    4
    Me too;on Unity 5.4.0f3(64bit).
     
    fangwenbo, Sep 23, 2016
    #4