[lwip-users] Delay in web page loading on v1.4.2

[vinu]

Hi all,

I am having issue in loading web page using netconn APIs in LWIP v1.4.2 on
FreeRTOS.

Earlier the issue was not there when we where running the MCU at 12MHz
clock. But once we switched to 120MHz, we are noticing random page loading
issues.

After few days of debugging  the stack, we found that the messages are
actually received at the TCP layer, but not received by the application
layer. 

We have found that the request reaches the point *TCP_EVENT_RECV(pcb,
recv_data, ERR_OK, err);* in file tcp_in.c (added debug prints and
confirmed) - PFA image_1.
 Sometimes the packet reaches netconn_recv mailbox after a delay and
sometimes the packets never reach. I'm attaching the wireshark capture of
this issue. See packet no 92. login_page_issue.pcapng
<http://lwip.100.n7.nabble.com/file/t2163/login_page_issue.pcapng>  

<http://lwip.100.n7.nabble.com/file/t2163/Screenshot_%2828%29.png> 

Please help.

regards,
Vinu






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