Windows 2K: Remote Connection Timed Out

[HotSpot]

Hi all. I have an issue with this Win2k Server SP4 and its like a needle in the haystack! The problem is that it has started to stall intermittently. At the time of stall, when I try remote connecting to it, it comes up with a message "Remote connection has timed out". See below linked screenshot taken at the time of stall.

Screenshot RDP timed out

This message appears every time whenever there is a stall and I try remote connecting to the server. An attempt made by network team was to disable Hyper threading on the server and as a result the duration of stall from 1-2 min to 30-40 secs. But then after re-enabling the hyperthreading the stalls continued to be at 30-40 stalls so not sure if HT-enablement was behind change of duration of stall.

A few more findings by Network team are:

1. Network connectivity: Pinging & tracert batch file results (at the time of stall) showed that network connectivity was present throughout stall.

2. No packet loss has been confirmed so that is also ruled out.

3. Hardware diagnostics went fine. No issue here.

4. That anti virus activity was disabled to see if it helps - it had no effect whatsoever.

Any thoughts to help solve the issue are more than welcome..

Thanks.