FTP while waiting (blocked) for Lora message

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With FileZilla I can list folders and files while the LoPy waits blocked for a LoRa message. But I cannot get a file until the program has stopped. The LoPy is connected to my local WiFi. The file shall be closed. FileZilla is waiting for a connection until it gets a timeout.

lora = LoRa(mode=LoRa.LORA, frequency=863000000)
s = socket.socket(socket.AF_LORA, socket.SOCK_RAW)
s.setblocking(True)
while True:
{
line = s.recv(255)
f = open('/sd/test.log', 'a')
f.write(line)
f.write('\n')
f.close()
}

Issue occurs on firmware 1.8 and 1.9.
Missing a code formatter in the forum, so I used {} to mark the loop block ;)

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@robert-hh
Thank you, I forgot to limit the connections

[robert-hh]

@crumble The code formatter is three backquotes (```) on a single line.
Did you set Filezilla to using a single session only. That is not possible in fast connect. You have to use the server configuration (Ctrl-S).