@Gordon I reset the SIM900 with a relais. I really switch it off and back on. After that the uplink (refresh IP) works... but not the requests. they will fail with above errors. Should I initialize something I forgot about?
When is the gprs.reset() to be used? I could not bring my SIM900 online if I only use reset with callback. I really had to restart it by withdrawing power and put it back on.
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@Gordon I reset the SIM900 with a relais. I really switch it off and back on. After that the uplink (refresh IP) works... but not the requests. they will fail with above errors. Should I initialize something I forgot about?
When is the gprs.reset() to be used? I could not bring my SIM900 online if I only use reset with callback. I really had to restart it by withdrawing power and put it back on.