Windows 7: Homegroup not seen on LAN with a Cisco Switch

Hi All, I have an issue that is as follows:

I have 4 desktops, 2 laptops all running Windows 7 Ult. 4 X64, 2 X86. 4 satellite receivers, a WII and 2 PS3's all on line.

I have the following setup for my network.
I have a Thompson DC476 Docsys 3 plugged into a DR-615 which does the DHCP, which is plugged into a 24 port Cisco Catalyst 2950. Which feeds the rest of the house. Upstairs I have a 4 port Netgear as a dumb switch that does the wireless for the phones and a tablet and the WII.

There are no real configs on the Cisco other than PORTFAST has been enabled and all ports are is switchport mode access on the default VLAN.

The only way I can get the Homegroup to work is to plug all the PC's into the DR-615 and the Netgear while ensureing the Netgear is plugged into the DR s well.

If they (PC's) are connected through the Cisco I loose the Homegroup. I can still see all end devices in Windows and access them as long as I've shared it out. I can ping all through the house with no problem and have no issues streaming to either of the PS3's from any unit.
(PS3 Media Server).



So I guess my question is what is the Cisco blocking that the other 2 let through?
Any Idea's?
Cheers!!

I am using a Dell PowerConnect 5324. When I was setting it up I used the commands from the instruction manual of the Cisco 2950. So I would think they have a lot in common.

When I setup mine I had to use the serial connection to set the IP address, netmask, and default gateway of the switch.

Have you done this much all ready?

I have full connectivity on all machines other than no Homegroup visible...
I'm using the Cisco as a dumb switch. All ports that are used show up & up on port status and protocol
Security and DHCP is all done through my DLink so not required on CISCO.

Oh, I didn't know you could do that. If you change your mind, here is the link to smarten up a dumb switch Steve Jenkins' Blog Dell PowerConnect 5324 Setup Tasks | Steve Jenkins' Blog

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