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Yes the VMTools are installed.
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I would check traffic shaping on the virtual machine port groups next.<br />
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I'm assuming all other vms on this host run fine except for this one.
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I would check traffic shaping on the virtual machine port groups next.

I'm assuming all other vms on this host run fine except for this one.

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Please update whether the issue is in VMware Server or VMware ESX.
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Please update whether the issue is in VMware Server or VMware ESX.

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After much testing and troubleshooting it ended up being a hardware issue.
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After much testing and troubleshooting it ended up being a hardware issue.

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thanks for your help, in the end it was a hardware problem but your assistance was helpful in isolating it.
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thanks for your help, in the end it was a hardware problem but your assistance was helpful in isolating it.

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I have a host server with an Intel Gigabit NIC (Intel PRO/1000 GT) and I was wondering how I can get it to work as a Gigabit NIC in my Windows 2003 Server Guest OS. &nbsp;Currently I can only get a maximum of 5.5 MB.sec transfer rate yet between the host machine and another server on the network with a Gigabit NIC I can get over 50 MB.sec.<br />
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Do I need to reinstall the vmtools or have the NIC reinstall itself? This is on a production server so I have not fooled around with uncertain fixes yet. 
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I have a host server with an Intel Gigabit NIC (Intel PRO/1000 GT) and I was wondering how I can get it to work as a Gigabit NIC in my Windows 2003 Server Guest OS.  Currently I can only get a maximum of 5.5 MB.sec transfer rate yet between the host machine and another server on the network with a Gigabit NIC I can get over 50 MB.sec.

Do I need to reinstall the vmtools or have the NIC reinstall itself? This is on a production server so I have not fooled around with uncertain fixes yet. 

VMWARE Server 1 Guest NIC not working at Gigabit speed with Gigabit host NIC

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.