Description
tried different libraries
started with https://.com/peterhinch/micropython-mqtt.git
then https://.com/bobveringa/micropython-mqtt.git
but now reverted to umqtt.simple and they all exhibit same behavior
gradually increasing message lenght up to 125 characters, when reached wireshark show multiple retransmits and the publishing stalls
tried with 200ms to 1000ms interval, no difference
!"#$%&'()+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[]^_abcdefghijklmnopqrstuvwxyz{|}~ !"#$%&'( !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_abcdefghijklmnopqrstuvwxyz{|}~ !"#$%&'()
!"#$%&'()+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[]^abcdefghijklmnopqrstuvwxyz{|}~ !"#$%&'()* !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_abcdefghijklmnopqrstuvwxyz{|}~ !"#$%&'()+
!"#$%&'()+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[]^abcdefghijklmnopqrstuvwxyz{|}~ !"#$%&'()*+, !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_abcdefghijklmnopqrstuvwxyz{|}~ !"#$%&'()+,-
!"#$%&'()+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[]^abcdefghijklmnopqrstuvwxyz{|}~ !"#$%&'()*+,-. !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_abcdefghijklmnopqrstuvwxyz{|}~ !"#$%&'()+,-./
!"#$%&'()+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[]^abcdefghijklmnopqrstuvwxyz{|}~ !"#$%&'()*+,-./0 this one stalls !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_abcdefghijklmnopqrstuvwxyz{|}~ !"#$%&'()*+,-./01
tested with a socket tcp transfer and i can transmit 20000 bytes without problem