Mobile data connection troubleshooting: Difference between revisions
Mobile data connection troubleshooting (view source)
Revision as of 20:51, 19 May 2020
, 19 May 2020no edit summary
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* Connect to mobile module of the router: | * Connect to mobile module of the router: | ||
... | ... | ||
ifdown ppp | root@Teltonika:~# ifdown ppp | ||
/etc/init.d/gsmd stop | root@Teltonika:~# /etc/init.d/gsmd stop | ||
microcom /dev/modem_cmd | root@Teltonika:~# microcom /dev/modem_cmd | ||
+QCSQ: "LTE",47,-75,166,-10 | |||
+QCSQ: "LTE",47,-75,161,-10 | |||
+CREG: 1,"008B","012CD17",7 | |||
... | ... | ||
* Most likely you will not see anything and that’s because screen echo might be disabled. ATE1 will enable it so that you can see what you write. at+qcsq=0 command stops showing unnecessary output | * Most likely you will not see anything and that’s because screen echo might be disabled. '''ATE1''' command will enable it so that you can see what you write. '''at+qcsq=0''' and '''at+creg=0''' command stops showing unnecessary output: | ||
... | ... | ||
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OK | OK | ||
at+qcsq=0 | at+qcsq=0 | ||
OK | |||
at+creg=0 | |||
OK | OK | ||
... | ... | ||
* Check communication (wait for the module to respond OK): | |||
... | |||
AT | |||
OK | |||
... | |||
4. Query SIM card status: | 4. Query SIM card status: | ||
• AT+CPIN? | • AT+CPIN? | ||