We are seeing a return routing issue from Microsoft sites (all of them; xboxlive, microsoft.com, etc) These are the only sites we're currently having reachability issues with. We're uplinked to Level3, Centurylink, NTT and Cogent out of NYC, Boston, etc. If I traceroute to 134.170.188.221, I die 1-2 hops in each carrier. I'm assuming this is a return path traffic issue as I have good BGP routes to Microsoft sites. So far, we're only seeing this to Microsoft and no others. It's confirmed that we can access these sites from off of our network. If anyone from MS/Xboxlive monitors this list, can you contact me off-list please? For everyone else, if you could copy/paste me a traceroute to 64.246.132.194 (offlist) that would be great. TIA -Robert