Atop Technology SE5416A User manual - Manual (Page 102)

Atop Industrial Serial Device Server
SE5408A/SE5416A Series
User Manual V 1.0
102
Figure 8.15
If the exclamation mark begins with No login/password prompts received from server
Figure 8.15, it means credentials in the Serial/IP is enabled, but VCOM Authentication in the
serial device server is not enabled.