[lwip-users] lwIP v2.2.0d, netconn_write returns error

[nick]

Hi,

 

I have an issue with netconn_write() returning an error when I try and send a “large” amount of data (large meaning a buffer of about ~ 30,000 bytes size).

Smaller buffers work OK without any issues.

The error returned from netconn_write() is -14 which is “connection reset”.

 

lwIP version is 2.2.0d

 

I have played around with the options in lwipopts.h but to be honest I am not a networking expert and I am relatively new to lwIP and so I am not completely sure where to start.

 

Any help, tips or advice most welcome!

 

Thanks and regards

-Nick