This problem, first reported in late March 2009, has been diagnosed to be caused by a corruption of the LNS Server software installation due to a false positive from anti-virus software. One vendor (McAfee) reports detection of a "Generic.Tra (ED) Trojan".
LNS software corruption is caused by antivirus quarantine of file "SRVANY.exe" that is installed under the LonWorks\bin folder, which, by default, is "C:\LonWorks\bin".
Anti-virus software has erroneously flagged "SRVANY.exe" in LonWorks\bin as a virus. Moving that file from quarantine back to your LonWorks\bin folder should resolve the problem.
You should also configure your anti-virus software to prevent recurrence of the quarantine of the "SRVANY.exe" file.
- LNS 3.0
- LNS Turbo Edition (Ver 3.2)
- LonMaker 3.1
- LonMaker Turbo (Ver 3.2)