I am having a problem closing a FTP connection. I think I’ve read through all the posts about FTP problems, but haven’t found my answer. I am able to get on the GPRS network and connect to my FTP server just fine. I can also successfully put the file on the server and send the escape sequence “+++”. Previously I was having an error with this showing up in my file, but I increased the wait time before and after the escape sequence send to 10 seconds and this fixed that problem.
The +++ no longer shows up in my file, but I still don’t get a response from the 862 after this. I have set my program to wait for 2 minutes, but still no response. It seems that after the +++ is sent the module goes off into la-la land. I have set at&d2 and done a transition from high to low twice, but no response. I tried sending at#ftpclose over and over again with 10 second pauses between them, but no response.
The only way I have found to get my module to respond again is to toggle on/off. Then I have to run my setup sequence again to establish another connection. Does anybody have any recommendations to fix this? Thank you so much for your help!