Virtualbox disconnects wireless

[dazzler]

Hi

I have a problem running virtualbox on my Toshiba laptop (Vista). When I open virtualbox it will disconnect my wireless connection and I have to disable and re-enable my wireless connection in order for the connection to be restored. I will then have a connection to the internet without any problems on my host and guest system. This will only happen when I load up virtualbox or if I try to update or install guest additions etc. The only way I can open virtualbox is by disabling and re-enabling my wireless as stated before. I have looked around for a way to resolve this but haven't had any joy so if you could suggest a way to sort this it would be greatly appreciated.

Cheers