|Subject:||[lwip-users] Problems Connecting to a GSM Router|
|Date:||Mon, 12 Nov 2012 13:38:53 +0100|
|User-agent:||Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20121026 Thunderbird/16.0.2|
We have developed a gateway that sends data gathered from some
devices to a server. Via LAN -> WAN this works fine and reliably
for months without failure. Now a customer has connected a GSM
rounter instead. In principle this works, too. But after a not
predictable time (minutes, hours, ... ) the GSM-router locks. When
trying to establish a TCP-connection via "netconn_connect" I get -10
I don't see how I could change the behavior for the connect command – either it works or it does not. Actually I think the problem is with the GSM-router, but may be, just may be anyone knows a trick or a special consideration to get rid of this connection problem.
The connection gets closed after each transmission and the repetition rate is about 5 minutes. Thus the amount of data cannot be the problem.
Thanks for any hint!
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