Hi Axel, On Tue, Mar 14, 2017 at 10:22:58PM +0800, Axel Lin wrote: > Hi, > Now I tried some different SIM cards on my device. > One of the SIM card always fails and I got PPPERR_CONNECT. > I double checked my code and settings but still don't figure out which > part is wrong. > (It works if using other SIM cards.) > Now I'm not sure which part needs to be checked. > Appreciate for any suggestions. > > PS. I tried that SIM card on USB dongle and it works with the same > APN/username/password.
Why are you not setting a trace debugger on the "chatscript" exchange ? From here it looks like the chatscript didn't end well and you started the PPP session whatever the chatscript result. Sylvain
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