when connected to the wingate server6.0 ,the gatekeeper report a protocol error, and the server log is:
Start time Computer User IP Application Action Duration Bytes in Bytes out
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18-Nov 13:12:58 159.*.*.* 159.*.*.* N/A WinGate LoginNo response from client to challenge 5 0 13
18-Nov 13:12:40 159.*.*.* 159.*.*.* N/A WinGate LoginNo response from client to challenge 5 0 13
18-Nov 13:12:31 159.*.*.* 159.*.*.* N/A WinGate LoginNo response from client to challenge 5 0 13
18-Nov 13:08:32 159.*.*.* 159.*.*.* N/A WinGate LoginNo response from client to challenge 5 0 13
Can any one tell me why?