SigFox with Sipy not working anymore

[devinv]

Hi,

After all my problems, Deepsleep, pytrack, cleaning flash memory, reloading firmware
I now realise that my Sipy is not sending anything to Sigfox anymore

When I tryed something as basic as

sigfox = Sigfox(mode=Sigfox.SIGFOX, rcz=Sigfox.RCZ1)
s = socket.socket(socket.AF_SIGFOX, socket.SOCK_RAW)
s.setblocking(True)
s.setsockopt(socket.SOL_SIGFOX, socket.SO_RX, False)
s.send(bytes([0x01, 0x02, 0x03]))

I have no errors, got 3 as answer
But on my sigfox page, no messages

it was working fine a couple of days ago, before all my flashing and firmware reupload

the Sigfox Id hasn't changed

What can I try to get it back?
Thanks

[Eric73]

Have you check the Token validity in sigfox backend 'informations' page, perhaps your device is out of contract (check creation date)?
Have you check in event in sigfox backend if you have an invalid sequence number event ? then you have to do a 'disengage sequence number'
Have you check the antenna connector ?

[devinv]

@eric73 Yes, the sequence was exactly my problem. Disengaging solved it :)