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Troubleshooting
SSL/TLS Certificate Errors
60
P1058563-003 10/31/13
SSL/TLS Certificate Errors
Secure connections to the remote server present the opportunity for several errors when
attempting to connect. The errors typically involve the certificates used when connecting via
SSL or TLS. This section highlights some of the most common issues involving the
certificates.
Error Cause / Solution
"SSLcertificateproblem:self
signedcertificateincertificate
chain"
One of the situations that prevent a successful connection is not
having the correct Certificate Authority certificates installed on
the remote server. Zebra requires that the Zebra Root Certificate
Authority and the Zebra Subordinate Certificate Authority be
installed on the remote server. This error typically indicates that
only one of the Zebra Certificate Authority certificates is
installed on the remote server.
"SSLcertificateproblem:unableto
getlocalissuercertificate"
One of the situations that prevent a successful connection is not
having the correct Certificate Authority certificates installed on
the remote server. Zebra requires that the Zebra Root Certificate
Authority and the Zebra Subordinate Certificate Authority be
installed on the remote server. This error typically indicates that
neither of the Zebra Certificate Authority certificates are
installed on the remote server.
"SSLcertificateproblem:
certificatehasexpired"
This error indicates that the remote server’s certificate has
expired. This is typically an indication that the printer’s date
and/or time are incorrect as the Zebra certificates are typically
issued for long durations. Check that
rtc.date and rtc.time
are set correctly.
Note • For printers that do not have a battery to store the
Real Time Clock (RTC) value, the date will be restored
to the default value upon a power cycle. The default
value depends upon how the
rtc.date SGD is managed.
If it has never been set then it will default to the
firmware build date (the value in
appl.date).
Otherwise, the value in
rtc.datewill default to the
value that it was last set to. This does not mean the value
of the
rtc.date when it was power cycled. It means that
when a user sets
rtc.date that becomes the new default
value.
If the printer has a battery, then the
rtc.date is never
default and continues to track the date as expected.