Troubleshooting Gnss Reception - Spectracom VersaSync User Manual

Web UI Page loc-
ation
MANAGEMENT/
NTP Setup page
NTP Status Sum-
mary panel
Stratum row
MANAGEMENT/
NETWORK page
Table 5-1:
Troubleshooting using the Web UI Status indications
5.1.5

Troubleshooting GNSS Reception

If VersaSync reports Holdover and/or Time Sync Alarms caused by insufficient GNSS recep-
tion:
When a GNSS receiver is installed in VersaSync, a GNSS antenna can be connected to the
rear panel antenna connector via a coax cable to allow it to track several satellites in order for
VersaSync User Manual
Current Status
Stratum 15 NTP is not syn-
chronized to its
available input
references (Ver-
saSync may
have been in
Holdover mode,
but Holdover
has since
expired without
the return of
valid inputs)
Cannot login or access the The following
Web UI. error message is
displayed:
"Forbidden You
don't have per-
mission to
access/ on this
server"
Indication Troubleshooting
Note: If VersaSync was just recently
powered-up or rebooted and input ref-
erences are applied, no troubleshoot-
ing may be necessary. Allow at least
10-20 minutes for the input references
to be declared valid and NTP to align
to the System Time (allow an addi-
tional 35-40 minutes for a new install
with GNSS input).
1. Verify in the Configure Reference Pri-
orities table that all available ref-
erences enabled. See
Input Reference Priorities" on
page 131
.
2. Verify that the Reference Status on
the HOME page shows "OK" (Green)
for all available references.
3. Verify NTP is enabled and con-
figured correctly. See
ence Configuration" on page 84
This message is displayed when any
value has been added to the Network
Access Rules table and your PC is not
listed in the table as an Allow From IP
address.To restore access to the
Web UI, either
1. Login from a PC that is listed as an
Allow From in this table; or
2. If it is unknown what PCs have been
listed in the Access table, perform an
unrestrict
remove all entries from the Network
Access Rules table. This will allow all
PCs to be able to access the Web UI.
APPENDIX
"Configuring
"NTP Refer-
.
command to
237