Slow Internet On Network
Posted on 2011-10-15
I have inherited a very messy and un-maintained Windows network.
Several servers and workstations are routed through a Cisco PIX 501 which is bridged to a DSL connection.
A brand new DSL modem was installed last week. Bandwidth at the modem tests just under 10Mbps for downloads and around 800Kbps for upload. Both are within the expected range.
On the network we experience bandwidth speed tests with downloads consistently around 800Kbps and uploads around 700Kbps. Up is acceptable, but down is horrible.
I have only recently gained dministrative access to all servers and the PIX as well. A single (2003) domain controller handles both DHCP and DNS and the network is 10/100.
Short of disconnecting the entire network and moving in component by component, I'm short of ideas.