In my project, I must have done something wrong with lwIP
Here is what happen
lwIP was sending out data at around 100KB flawlessly via TCP connection.
At some point, my program must cause lwIP to make a wrong decision. After
that, the throughput rate drops to only 10KB, thus my data buffer
overflows
Closing and reconnecting TCP doesn't solve the problem
I have to cycle the power to get it right again, then it will happen
again
I will appreciate any suggestion to help me to debug the problem, such as
turn on some tracers, more debug messages, etc, thanks!