ethernet timeout max 10 with nichistack SRAM memory

hi Intel

using MAX10 FPGA with TSE MAC ,SRAM and own application as client

every time need to below steps

1.open connection from client and connected to server.

2.client will get (4500 in 40 times )data from MAX 10 NIOS processor .

3.close the connection and again re-open the connection .

using SRAM [tristate controller ]for Stack ,heap and code ,packet memory.

i am getting frequent time out in one hour . but my setup as to run for long hours minimum 1 day.

listed observation when timeout times:

1.processor is going for dtrap and panic ,MAC close

2.no sync ,ack fin reply from processor [Processor is in hold state may be]

Note : if i added some delay after data send it is running for 2 -3 hours then getting timeout and errors .

really worried on this more than 2 months but not able to find solution for this project .help to resolve the problem and find the route cause for this.

if someone helped me it will be grate help for us team.

Regards

Ram.