"Consumer" Grade!
Tuesday, March 25th, 2008Mixing Gigabit network kit - especially “consumer” grade (aka cheap) - with Fast Ethernet (or wireless) devices such as Media Centre extenders can be bad news. At least it is for my setup.
Symptoms are that playback on the Linksys DMA2100 extender is either flawed (jerky, pixalated, audio drop outs) or completely unusable. The network optimisation report will show the link as being unsuitable for HD if not nothing at all.
Microsoft have a KB article which which describes a workaround. Either drop the Media Centre network card speed to 100Mbs or implement Flow Control RX on the host Media Centre. Linksys actually include an errata card in the box with this KB article linked.
Unfortunately applying the RX setting to the Flow Control on my Media Centre with it’s integrated Intel gigabit port caused the receive speed to die making networking and updating content on the Media Centre a royal pain. Likewise the gigabit NIC wan’t happy being forced to 100Mbs.
My solution. Disable the onboard gigabit network card in the Media Centre and install an old 3Com 3C905TX PCI Fast Ethernet Card. Hey presto, the DMA2100 is happy, and I can at least copy content to the Media Centre at reasonable speed.
All for lack of a $1 or less gigabit port in the Linksys Media Extender!
Moral of this tale - You get what you pay for!

