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PLS8-E unable to update apn table | Thales IoT Developer Community

September 9, 2022 - 2:13pm, 175 views

Hello,
I'm using two kind of PLS8-E, rel. 3 with 3.017 firmware and rel.4 with 4.004 formware.
On both types I observe problem with at+cgdcont command.
Test sequence is:
at+cmee=2
at+cmee=2
ok
at+cgdcont=1,"IP","***" (*** is my client apn name)
at+cgdcont=1,"IP","***"
error
at+cmee=2
at+cmee=2
ok
at+cgdcont?
at+cgdcont?
+cme error: unknown
ok

Probably I have reached the limit of write ***** to the same apn table. Devices constantly switch between operators and work in 24/7 mode.
Is there any method to investigate internal modem issue deeper than using +cmee=2?