Cinterion ELS61-R2 Internet service commands failing

General
1

Using an els61 r2 with a host controller; normally working fine but occasionally it gets stuck and I discovered that when it happens the Internet Service Commands give and error response.
Does anybody know which event can cause that condition? I spent 2 days making tests but I was not able to find out a reason!
Here are the modem data from at commands:
Cinterion
ELS61-E R2
REVISION 02.000

The commands giving “ERROR” are e.g. at^sics?, at^sisi?, at^sici?, etc.
However, the modem results registered to the cellular network and a bearer is activated, as shown here:

at+creg?

+CREG: 2,1,“0066”,“07B4EB2B”,7

OK

at+cgdcont?

+CGDCONT: 1,“IP”,“ibox.tim.it.mnc001.mcc222.gprs”,“”,0,0

OK

What could be happening? Can somethnig could be blocking the Internet Service cmds engin or so?

2

Hi Guiferra,

Have you checked the response of “AT^SICA?” when the issue is triggered?

For any reason (network drop or handover failure, etc.), if the module re-attach to the network, you need to run “AT^SICA= <state>,<cid>” command again before using the IP service.

BRs,

Cong