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The display unit is not able to connect to the
server PC when it uses the Windows Firewall. Disable the
Firewall.
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The time-out of the server computer and display
unit is set at 75 seconds. If you cannot connect with the server
computer, the display unit searches the network for 75 seconds and
the remote PC access window display appears as a black screen.
After 75 seconds, the error message "The server cannot be found, or
unable to connect to server" appears on the display unit.
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If you cannot connect even after the display unit
connects to the server (for example, the IP address of the server
cannot be found or a cable is unplugged), you cannot restart the
server computer or input to the RPA window screen for up to 75
seconds.
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If you cannot connect to the server computer (for
example, a disconnected cable exists), you cannot update or input
to the screen of the RPA window. because the connection times out
based on the time-out settings on the server computer. In this
case, the time-out error message does not display on the server
computer. Turn off the remote PC access window display to end the
RPA connection.
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If you cannot connect to the server computer, you
can update and operate the screen if the connection is recovered
before the server times out. The input entered during the
disconnection is sent to the server computer after the connection
is recovered.
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If communication between the display unit and
server PC fails after a connection had been established, turn off
the Remote PC Access Window Display. However, you will be unable to
use the Remote PC Access Window Display on other server computers
for up to 75 seconds. After re-starting the remote PC access window
display, the error message "Connection to the server in progress"
appears on the display unit.
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While you cannot connect to the server, even if
you shift to offline mode or transfer project (when it is not reset
by automated transfer) then shift back to online, you cannot
connect to the server computer up to 75 seconds after connecting to
the RPA. After returning to online and starting the remote PC
access window display, the error message "Connection to the server
in progress" appears on the display unit.
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When the Remote PC Access server connection is
not established, you cannot run the LAN self-diagnosis check in
offline mode's [Maintenance Menu]. After the Remote PC Access
server connection is made, wait 75 seconds and then check the LAN
ports.
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When using UltraVNC, it is impossible for
multiple display units to connect to one server computer at the
same time. When using rdp2vnc, it is possible to connect from
multiple display units.
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When connecting from multiple GPs using rdp2vnc
at the same time, the allowable number of devices depends on the
CPU or memory of the server computer. Refer to the following:
