Icera reset

Legacy Legacy AirPrime modules
1

Hello,
currently we’re getting the following error about 5 times a day:

22:35:06:406;001;ADL;2;[my own trace, err -988]TCP: No network reachable at all.
22:35:06:406;002;ADL;7;[my own trace]Closing TCP comm socket.
22:35:06:406;003;ADL;2;[my own trace, err -36]IP connection terminated - we try to reconnect...
22:35:11:953;002;DEV;1;UART401
22:35:11:984;003;DEV;1;UART404
22:35:12:093;001;PWRMGR;1;########## ICERA RESET (Crash Log : 15) ############
22:35:12:093;002;PWRMGR;1;File: ../private/avs/drv_avs.c line 3060<CR><LF>
22:35:21:703;003;DEV;1;UART402
22:35:33:828;001;ADL;7;[my own trace]IP reconnected

We’re using Q26Extreme with Firmware R7.46 (OpenAT V6.36).
Seaching in internet, I found out, that there is a “Power-Management IC for ICERA Platform” (MAXIM).

Could anybody give me a hint, what’s the reason of this error?

Thanks,
Oliver.

2

Hi,

WIP_CERR_NETWORK_UNREACHABLE -988 may be received when the network is down or is not reachable. So try connetcing to a
different server.Also try stopping the bearer and closing it, before you try to start a bearer again.

3

Hi,

Not sure how you get yours ICERA reset but one can obtained relatively easy by enabling GPRS channel and periodically run AT+CSQ command from software to get RSSI status. Leave it for a while and you will get ICERA reset. At this stage, OpenAT will attempt to recover, but does not always succeeds. For some reason, you can get that reset much more often on some modules.

Sierra Wireless can not fix the issue, as ICERA is no more and service contract with them expired.

Rudolf