Kolasis

I have the same behavior like yours ESP-Core-Version:2.0.4 , also Tested with 2.0.0 Latest Versions for ESPAsyncWebServer/AsyncTCP Some general Errors without the Backtrace-debugger: assert failed: tcp_update_rcv_ann_wnd IDF/components/lwip/lwip/src/core/tcp.c:951 (new_rcv_ann_wnd

Any update on this problem ?

> Can you try with: AsyncTcpSock instead of AsyncTcp? https://github.com/yubox-node-org/AsyncTCPSock This seems to drop me some errors from time to time [776424][E][AsyncTCP.cpp:797] _flushWriteQueue(): socket 52 lwip_write() failed errno=104 But it...