Siemens CIM - Page 122

Technical support
A.2 Troubleshooting
CIM
122 Operating Manual, 11/2022, A5E51250518-AC
If all the items in cellular status are OK, but you still cannot send/receive SMS or access
Internet, check the following cases.
Problem
Possible cause
Possible remedy
CIM cannot
send/receive SMS
The SIM card account is in arrears.
Top up the account. Then go to the Cellular status page
and press the button "Restart Cellular Module" to register
again.
If the SIM card still cannot be registered, try the follow-
ing:
• power off the CIM for more than two hours
• change a CIM card or cellular module
The SIM card is locked by your telecom
provider.
Contact your provider to unlock it.
The SMSC (Short message service center)
number is not correct,
Ask your telecom provider for the SMSC number and
Enter it in the following page of web-based configura-
tion: Cellular Settings -> SMS Center Number.
The cellular module doesn't support the
provider's SMS.
The message encoding format is not 7-bit
or UCS2 (16 bit).
The SIM card is not compatible with the
cellular module.
Change a SIM card which is compatible with the cellular
module.
Cannot access to
Internet
The advanced settings (APN, dial-number)
is not correct.
Contact your telecom provide and enter the APN in page:
Cellular Settings -> Advanced Settings.
• It is slow to open
the web-based
configuration
pages.
• You get a load
fail when open-
ing the web-
based configura-
tion page.
• You didn't install the certificate on
your operating system or browser.
• There are too many cache files in the
browser.
• Install the certificate on your operator control and
monitoring system or browser.
• Clear the cache files of the browser.
• Close and re-open the browser.