I have a bit of a NIC configuration problem with a server and it's under utilisation of a leased line internet connection on a single Windows 2008 Server.
In our office, we have a Virgin Internet provided 800 MB up/down Leased Line on a 1000 MB bearer circuit. The internet comes from a Cisco 8000 Series router via an NTE box (both internet provider managed) to a Watch Guard M200 Firebox onsite. From the Watch Guard's LAN port 1, there is a stand-alone Windows 2008 Server (non DC) with a statically assigned server IP address of 10.0.3.10 and the gateway of the Watch Guard port being 10.0.3.1
The Server is a HP DL380 G8 with 128GB of Memory, 2 X 8 Core 2.6 Xeon Processors and a RAID 10 Volume of 4 x 600GB 15k SAS Drives
The Network Card in the server is an Intel Chip Set, HP branded 4 Port Gigabit Card, model HP NC365ST PCIe Quad Port Gigabit Server Adaptor.
After the internet circuit was brought into service a week or so ago, speed tests (http://supportal-test.co.uk
) from the Server are only showing a maximum of 515MB down and 534MB up
We have ran iPerf tests at the request of the internet provider and they can confirm from the results that the internet speed is correct at 800MB up and down.
The reason i need help is that when we powered up the server in safe mode (at the providers request) and ran the internet speed tests again, to our surprise, the speed tests showed 775MB down and 766MB up. It is only when the server is booted up in normal mode that the speed drops
Any help, guidance or direction is greatly appreciated, as always