I'm having problems getting WDS to Multicast in the field.
Hello! I am on the technology team in a K-12 school district. Here is a little backlground information on our organization:
We have 6 sites with 95% of our servers at our high school.
We are a flat 10. network.
We use all 3COM 4400 switches and one 3COM 4950 at the high school - IGMP snooping is enable.
Our firewall is a SonicWall NSA 3500.
Our firewall is our default Gateway.
I am trying to get WDS to multicast properly. When I set WDS up in a test environment, multicasting works like a charm! My test environment consists of a 3COM 4400 switch, 2 workstations, 1 server running 2008 R2 (Primary Domain Controller, DHCP and WDS installed). When I try to run it off our network though, it locks up.
On our live network, WDS is installed on a Server 2007 SP2 box which is also our PDC and DHCP server. When I try to multicast, WDS will accept the clients (they show up in the multicast window), but when the image is sent, they just sit there like they are not receiving the transmission. I should note that unicast works fine.
I'm trying to narrow down the problem... here are some possible issues:
#1 - In my test environment, the Sonic Wall was not an issue
#2 - In my test environment I was running Server2008 R2, on the REAL network I am running Server2007 R2
#3 - In my test environment, I am connected directly to the switch. In reality, our school buildings are connected through town fibre. Could there be some piece of equipment in-between buildings that I don't have control over that is causing the problem.
Has anyone had similar issues? Anyone have any ideas I can try?