Streaming problem

  Ian in Northampton 14:53 22 Jan 12

I have two PCs, both connected wirelessly to the same router. One is a 2.8GHz P4 with 2GB of memory, running XP. The other is a Dual core 2.6GHz E5300 with 3GB of memory running W7 Home Premium. The latter streams flawlessly - the former very poorly, with regular video freezes. Given that we can eliminate my Internet and wi-fi connection as the causes - the W7 machine is fine - where should I be looking to try to find the cause(s) of the XP machine's poor streaming performance?

  T0SH 15:49 22 Jan 12

From my reading of your post you can eliminate your your Wireless router and your Win7 wireless connection as being the problem, but the XP wireless connection cannot be eliminated quite yet

Why not try a few speed tests from here on both machines alternately if the results turn out to be reasonably close then, you can eliminate wireless issues as the problem

It is always worth eliminating any bandwidth stealing utilities which start with windows in diagnostic tests on streaming issues

A handy tool to help identify the culprits is the free utility called What`s Running combined with something like Autoruns or its likes should give you the ammunition you need

Cheers HC

  Woolwell 17:10 22 Jan 12

What anti-virus/firewall do you have running?

  Ian in Northampton 17:39 22 Jan 12

Thanks guys.

TOSH: great idea - I hadn't thought of independently verifying the speed of the two connections. However, it turns out they're pretty much identical at just under 6Mbps (I was surprised it was so high).

So, on to "what's running". Fascinating stuff, although I can't claim to understand it all. One thing did pop out at me, though. On the W7 machine (the 'good' one) I have between 50-70 IP connections running. On the XP machine, there are more than 4,000!

Closer examination reveals that the huge majority of these are HPNetworkComunicator.exe. These are doubtless there because of my wireless HP printer - but why there should be so many I have no idea (other than the printer has been attached via cable for a while, as the wireless connection proved flaky, so it may generate a new IP connection every time the PC polls the printer).

However, I doubt that's the source of the poor streaming, as streaming has been bad since before I installed the HP printer.

There are also some slightly troubling IP processes that are associated with e.g. Akamai Technologies and Expert City.

Also - I can get "what's running" help to initialise - do you have any insight as to why, occasionally, some of the IP processes get highlighted in red, and sometimes in green?

Woolwell: on the XP machine, it's Avast! - on the W7 machine, it's MSE.

  Woolwell 17:51 22 Jan 12

Just wondered if the streaming is being scanned by the anti-virus and how much resources those programs are using. This may be a red-herring.

  Ian in Northampton 18:12 22 Jan 12

Thanks Woolwell. I can't be 100% certain, but I think the streaming problem was apparent from before I switched from AVG to Avast.

  Secret-Squirrel 09:15 23 Jan 12

Ian, where does the streaming problem occur? Is it with BBC iPlayer on the web, BBC iPlayer desktop application, YouTube, or everywhere? If it's browser-based streaming that's affected, then does the same problem occur in more than one browser?

When the video freezes, do you see the little circular animation centre-screen to indicate the player's buffering data?

To start you off with some practical advice, it may be worth you running a fuller set of tests - BBC iPlayer Diagnostics would be ideal as apart from the regular speed-checker, it's also incorporates three streaming tests. Compare the results from both PCs and let us know what you find.

  Ian in Northampton 11:34 23 Jan 12

S-S: thanks. It's everywhere - anything I try to stream suffers the same. However, I wasn't aware of the iPlayer diagnostics, so I'll definitely give those a try.

  Secret-Squirrel 09:11 24 Jan 12

How did you get on with your streaming tests Ian?

If again you got roughly the same results on both PCs then here are a some things to try (in the order listed):

1) For Flash-based videos, such as YouTube, or the browser-based iPlayer etc, right click in the video window, choose "Settings..." and experiment by toggling the "Enable Hardware Acceleration" option.

2) From the right-click menu, choose "Global Settings" -> "Advanced" tab. Click the "Delete All" button to empty the cache and remove any custom settings.

For suggestions 1 and 2 I'd recommend restarting your browser after making any changes.

3) Right clicking again will also show you the Flash version at the bottom of the menu. If the Windows XP one is older than the one used on your Windows 7 PC then you may want to consider upgrading it from HERE.

  Ian in Northampton 09:19 24 Jan 12

S-S: many thanks. Yep, I tried the iPlayer tests, but they revealed nothing that helped. So, on to your next set of suggestions. Very many thanks.

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