Potential malware?

[YT52]

Over the past two days I've been experiencing connection problems with a lot of sites and a general slow down in internet speed. For example, Speedtest.net wont run, Barclays bank will not open, nor will several other sites. Some will eventually load but only partially and hang with the message "waiting for" or "about blank"
I upgraded to Firefox4 and in fact tried a variety of browsers but to no avail, I've done a system restore and scanned with Malwarebytes in safe mode and run a virus scan.
Now it seems all my Firefox add ons have disappeared and I'm no longer able to access the add on manage screen. I think the systems being slowly taken over.
I've phoned Virgin Media and they sent reset signals to the cable modem and assured me there was no problem with their service. Didn't make the slightest bit of difference though.
I'm pulling my hair out now and thinking it's time to wipe the drive and start again, but before I do that, is there anything else I could try?
Running Vista btw.

[ChuckFickens]

Virgin media have been suffering from some routing problems over the last couple of days.

The person you spoke to either didn't know their arris fromt their elbow or was lying...

http://www.theregiste...edia_routing_problem/

[YT52]

Thanks, I'll postpone the reinstall. I wonder if I can get a refund?
If I could ask one more thing, how do I provide traceroutes and where would I submit them?

[Bigfellah]

Try restoring the system in Safe Mode to a previous date on which you are sure there were no problems. You won't lose any data and should be able to carry on as before.

[ChuckFickens]

As I have no idea where you'd submit the trace route to telling you how to do it is a little pointless but if you want to give it a go open a command prompt and type tracert followed by any web site address and it's will show you the route your packets take (though to the average person the results would make no sense) for example to trace a route to this site you'd tpye.

tracert www.theanswerbank.co.uk

I have read on other forums that changing your computers DNS settings to use a different set of DNS servers can help the issue, so you could try that...

http://code.google.co...c-dns/docs/using.html

If it doesn't help just change every back to as it was.

[ChuckFickens]

Sometimes I wish MS had never introduced system restore! I'm constantly amazed at the amount of people that suggest a system restore when they obviously have no idea what the problem is!

[YT52]

Thanks, changing my DNS settings is just a bit too much for me to manage, but I'm grateful for your answer. Looks like I'll have to ride this out 'till VM get their shop back in order.

[YT52]

I'm sure there's something wrong, Kaspersky has stalled at 99% during a full scan on workflow.componentmodel.dll
It's been at it for 3 hours and I had to cancel the scan because it's obviously not going any further.