I have some network registration problem about GC864,they are as below:
1. GC864 always registers in roaming network,it’s more than 90%,sometimes it will return to local network.
2. If the module is registered in local network,the data rate and quality of transmission is much better than the module registered as roaming network.
3. Some times,the modules will take lots of time for the network registration,they are all registered in roaming network,the data rate is bad and it always lost connetion(40~50%).
Pls give some suggestion about how to force GC864 registering in local network.Or if you have any other suggestions ,pls kindly advise.
Thanks for your suggestions!
You should find out first, why is your module registering in roaming. I suppose that this happens when your Home NW is not in range. Can you perform a network scan with “AT+COPS=?” on one of these locations? Maybe you can use the manual network selection instead of automatic:
Hit enter to search or ESC to close
Knowledge Base & Download Zone