SIM800L AT+CGATT: always 0

hello every body… thanks i can join in here…
i have a problem with my SIM800L…
i check for AT+CGATT and always 0… can anyone help me…
thanks…

Hi,
Make sure you have configured the APN values correctly and also check if your module has connected to network. Ring to the SIM card and see. If it rings then you are good to go.

HI, Thanks to replying…
i wass setting my APN Values…
i try to command AT+CGATT=1 and reply is ERROR…
what i must try to setting again?

Try sending a AT+CIPSHUT before you begin. It will close any open GPRS connection.
You can CGATT error if module is already attached to GPRS or when the module is unable to attach to GPRS.

You should send AT+CGATT only once after boot up. You can proceed without that command also.

i have the same problem, if i send at+cgatt=1 is always error. i was to set my apn and i have done do your advice with at+cipshut but it always send error if i send at+cgatt=1

Check your balance and also that your module find network!

Sir I face same issue…!
Please suggest me