Replying off-list as requested. John
On Fri, Oct 31, 2014 at 1:41 PM, Mark Price <mpr...@tqhosting.com> wrote: > Similar to another thread on the list today, I'm troubleshooting a problem > for a customer on Comcast business fiber. > > Downloading a file from one of our web servers is very slow (~15KByte/sec). > mtr looks clean in both directions. I added an IP address on the same > server from a different class C on our network, and downloads form this new > IP are fast (2MByte/sec). > > Tracerouting from server to client is the same using both source IPs. But, > one IP consistently has the very slow speeds that the other does not. > Changing our outbound path between different upstreams does not make a > difference. > > It certainly feels like Comcast is throttling one of our IP ranges. Could > someone at Comcast please contact me off-list for details? > > > Thanks, > > Mark >