Have to ping Terminal Server to establish RDP

By kevinamartin ·
I have an issue that is driving me mad. A competitor company reinstalled a Windows 2003 Terminal Server for one of my clients and it has been acting funny ever since. It is a bank with 4 remote branches that have Wyse thin clients at each teller that RDP to this server for daily use. No thin client or workstation at any of the branches can connect to the Terminal Server unless you ping it first. Afterwards, it works great. The servers are located at the main branch and nobody is experiencing this issue there, it works as advertised. I list my troubleshooting steps as follows:

-DNS settings
1. Checked all settings on terminal server and compared them to a known good server, all were identical
2. Created a static IP on laptop for testing purposes with same settings as server
3. Verified proper WINS settings.
4. Flushed and registered DNS settings on server and laptop.
5. Verified main branch machines can connect to terminal server OK
6. Ran a traceroute to server from bank workstation without any issues.
7. HP network utility on server had various checksum settings disabled. Enabled these for testing which is default.
8. RDP to IP or DNS name has same result

-Terminal Server
1. Specified the #1 main NIC under the configuration settings for the RDP connection
2. Verified that (before ping) new RDP connections are not being seen in Terminal Services Manager
3. Deleted all the Terminal Services certificates in the registry which are recreated successfully after reboot
4. Deleted and reconfigured RDP connection object in Terminal Services config

1. Noticed that server has different version of McAffee than the rest. Disabled the services.
2. Rebooted server after all the above changes

1. Rebooted the switches and firewall to possible clear the ARP table. No other servers are having this issue

Google searches are coming up empty. ?cannot RDP before ping? apparently isn?t a common issue. If you have any other ideas, please let me know. Thanks

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