INTERACT FORUM
More => Old Versions => Media Center 11 (Development Ended) => Topic started by: davisford on May 28, 2006, 09:02:25 pm
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Hi, MC used to work with my Roku. Recently I changed Access Points, I also upgraded MC to 11.1.178, and upgraded the Roku firmware to 2.5.something. I know I shouldn't have changed everything at once, but this is the case. Now, Roku cannot discover MC UPnP server.
I spent many hours today in frustration trying to figure out why. Roku shows the "No music libraries found (why?)" message.
First, I suspected the new AP, firewall, security device was not propagating broadcast packets from the wired to wireless LAN. MC 11 is on wired lan, Roku is on wireless LAN -- both use same AP. Unfortunately, I can't get a good sniffer (e.g. Ethereal) to capture Wi-Fi packets, and the wired machine is 64-bit AMD, so I can't get Ethereal to work with that either.
I tried plugging Roku into wired lan, but still no love. The machine that hosts MC11 can ping the Roku IP address, so I know I have a route to the device.
I also have an old version of MC11 running on a laptop, so I fired that laptop up -- connected to the AP via Wi-Fi, and Roku discovered the UPnP server on the laptop.
So, a couple things might be wrong:
a) the latest version of MC11 has some problem with the latest version of Roku firmware -- problem is I don't have good network tools at my disposal to diagnose if this is the case
b) my AP, which is a VPN appliance is not properly fowarding the SSDP discovery packets. can someone post the multicast IP addresses used, and UDP port numbers -- so I can create some explicit firewall rules to try to match on?
Any other help / ideas would really be appreciated. This sux.
Regards,
Davis
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There is a more recent version of MC on this board, near the top. It would be nice if you could try that one. There have been a few UPnP changes.
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Hi Jim -- downloaded, upgraded. Still no love. It is now UPnP Server Version 1.0.37. I'm trying to diagnose if it is the route. The appliance is the DLink DFL-CPG310. It assigns a different network to the lan and wlan:
lan: 192.168.10.2-255, mask 255.255.255.0 (gateway 192.168.10.1)
media center pc is at 192.168.10.129 with gateway 192.168.10.1
wlan: 192.168.252.2-255, mask 255.255.255.0 (gateway 192.168.252.1)
roku is at 192.168.252.111 with gateway 192.168.252.1
I can ping 192.168.252.111 from 192.168.10.129.
it is a bona-fide router, but i'm suspicious that it is not routing multicast packets between the lan and wlan -- i just can't confirm it, b/c I don't have a packet sniffer for wi-fi and 64-bit machines.
i think that when UPnP server fires up, it sends a UDP packet to 239.250.250.255 (SSDP packet), and the router should receive this on 192.168.10.1, and forward it on to 192.168.252.1, but I don't think this is happening -- and I'm guess this is what the problem is.
I tried adding a static route:
224.0.0.0 netmask 240.0.0.0 gateway 192.168.252.1 but it complains the gateway is bad.
still frustrated and trying...
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It has to be more than a static route, you have to tell the router to send multicast packets on through. I don't know how to do this, sorry...
j