Vaisala viewLinc 4.3 - Manual (Page 184)

Troubleshooting Tips
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computer, type ping <IP address>. If there are successful
responses to the ping, this test will prove that routing exists
between the subnets. Go to the next test.
2 For Digi Devices:
a In the command prompt, type telnet <IP address>. If you
receive a login prompt, this test will prove that the Device
is able to respond to requests. Press [Ctrl]+[C] to abort the
login. Go to the next test.
b In the command prompt, type telnet <IP address> 771. If
you receive an error message (and the previous tests were
successful) then Port 771 is blocked between the local com-
puter and the Device. This port must be opened before the
Device can be used with Vaisala viewLinc software. This
port may be blocked by network Devices (such as routers,
firewalls or layer 3 switches) or PC software (such as the
Microsoft Windows Firewall, 3rd party firewalls, or secur-
ity software suites). Unblock this port.
A successful connection is indicated by sets of three (3) hori-
zontal lines (
...) appearing on your screen. Note that one
set of lines will appear every 10 seconds.
Troubleshooting Tips
Logging In
Q: Why can’t I log in to viewLinc using the correct user-
name and password?
A: Ensure the viewLinc Enterprise Server service is running:
4 In Windows Control Panel, choose Administrative Tools | Ser-
vices
, then find “viewLinc Enterprise Server” on the list and
right-click to select Start. (If Enterprise Server isn’t running you
cannot view the Login screen).