error +HTTPACTION:0,601,0

Question

I m trying to access a website using sim900 GSM module. This is the list of commands

AT+CSQ      
+CSQ: 16,0          

OK  
AT+HTTPINIT           
OK  
AT+         


        

Answer 1

I have spent many hours with this module right now.

My experience is that when you dont get a 200 reply from remote server, you should check IP address to verify you are still on the network sendng a ping to a working server (AT+CIPPING="XX.XX.XX.XX").

If it succeeds: Try AT+SAPBR=2,1 and AT+CIFSR. You should get same address for both commands.

If you dont get same address, login again to the netword/service with AT+CIPCSGP=1, "yourapn.com", "user", "password".

If nothing works, power down the module. Wait a couple of minutes, and restart again.