GPRS TCP Connection CME ERROR 558 – cannot resolve DN

4 thoughts on “GPRS TCP Connection CME ERROR 558 – cannot resolve DN”

1. Hi Cosmin,

    

   Most of the times i want to establish a new tcp connection, i get this error, is there a way to improve DNS resolution ?

    

   I’ve already activated DNS CACHING. 

    

   Also is it possible to decrease AT#SGACT timeout ? 

   1. Hi,

      please could you post the firmware version (at+cgmr) and which server you try to connect to try to reproduce your scenario at my side?

2. Hi Luca,

    

   don’t matter what server i try to connect, if i try to connect to http://www.google.com i get this problem.

    

   i’m using the latest for GE865 – 10.00.004

    

   1. Please post the complete list of AT commands you are using and the related answers