Hi, I need some advise about SSDP. I'm getting around 60 messages per minute on my network firewall about packets sent to 239.255.255.250 on port 1900. I know it's about SSDP, so I've decided to disable SSDP Detection Service on every client in my domain network. I need to get rid of these messages in my firewall because they make reading logs more difficult, and because I don't think we really need SSDP nor UPnP service in our office network. (I can't see any advantge about using it) The question is whether disabling SSDP Discovery Service would have any negative effect on these client machines (most of them are notebooks) regarding their use on home networks. (like not finding their home wifi routers or similar) Thanks in advance.

If you don't need SSDP and UPnP then you can disable SSDP Discovery Service. SSDP Discovery service is required for UPnP and Media Center Extender (as per Windows Services > Dependencies tab for SSDP discovery) and so if you don't need UPnP it won't have any negative affects. Network Management in Windows isn't affected by SSDP; you can confidently disable it in case you are sure none of them would need UPnP in the future (ofcourse you could enable it again for if you ever have to use UPnP - but for that you need to remember that you disabled SSDP).

Thanks for replying, That's what I'm going to do. If anyone come to us with conectivity problems I'll think about re-enabling the service on his/her notebook.