XBOX live failing to sign in due to ICMP responses

[J4K3 M]

I was playing on my xbox all day yesterday perfectally fine and then went out for a couple of hours. When i got back home i couldnt sign into xbox live as my router or gateway isn't responding properly to ICMP responses.

does anyone have any ideas what I can do to get it work again?
Help Please

Thanks
Jake

 

[Azuse05]

Hammer.