Hi David and Grant, We have been experiencing exactly the same issue also now whereby our instances randomly stop getting their DHCP reservation and then drop offline. A simple reboot in the AWS console usually sorts it but as yet we do not know the root cause.
Regards, Neil On 1/15/16, 1:31 PM, "NANOG on behalf of Dovid Bender" <nanog-boun...@nanog.org on behalf of do...@telecurve.com> wrote: >Grant, > >We have been having issues for a few weeks now with instances that >randomly stop getting their IP from DHCP. Did you see any dhcp errors? > > >Regards, > >Dovid > >-----Original Message----- >From: Grant Ridder <shortdudey...@gmail.com> >Sender: "NANOG" <nanog-boun...@nanog.org>Date: Fri, 15 Jan 2016 12:58:58 >To: nanog@nanog.org<nanog@nanog.org> >Subject: network issue on ec2 classic us-east-1?? > >Hi, > >Over the last 6 hrs i have had over 100 instances in us-east-1 in EC2 >Classic fail their instance health checks and a reboot via the console >solves them. Logs on the host point to a loss of all network >connectivity. Anyone else experiencing something like this? > >Reached out to AWS support and haven't gotten anywhere with that yet. > >-Grant