I’m trying to open a HTTP connection with the LTE/GSM modem GL7600. Following the example of section 18.8 in the HL76xx AT Commands Guide I repeatedly got errors like this
I noticed that after switching to “GSM only” mode with AT+KSRAT=1 the problem is gone:
After switching back to LTE mode it still works until I restart the modem.
Is this the wrong way to establish an HTTP connection via LTE?
I saw that some other users had similar problems but I couldn’t find a useful answer.