The 404 errors were the result of a bug in the latest version of the Datatracker, deployed earlier today. We have rolled back to the previous release while this is being investigated, and the links should work properly now. Alexa > On Sep 5, 2017, at 3:37 PM, S Moonesamy <sm+ietf@xxxxxxxxxxxx> wrote: > > Hello, > > I tried to access the IETF proceedings for IETF 97 and IETF 98. There are 404 errors for the slides. Can that be fixed? > > Regards, > S. Moonesamy >