MK61FN1M0VMJ15

hemanth3279 — Mon, 08 May 2023 14:45:06 GMT

HI, We are using K70 MCU. In some of the boards we are facing the issue with webpage loading.

P/N: MK70FN1M0VMJ12 and MK61FN1M0VMJ15.

Hardware Tests:

PING Test : PING is working fine.(Compared with the boards where Webpage is working fine.)
In one of the boards we have replaced the complete MCU and ethernet related components, we are able to see no difference in the behavior's.

Looks like Hardware wise we are not able to see any difference w.r.t timing diagrams, (Please find the attached Snapshots).

Once observation we have done in the Wireshark with Working Webpage board and Non Working webpage boards is as given below,

When the webpage in not opening we see more number for TCP Spurious Retransmission.
It will be very helpful if you can throw light on the issue.
To suspect on the Hardware, we are able to ping the board and transmission of packet is happening in TCP.
Only issue is with Webpage Loading.
Also, we have 10 boards working, we are facing this issues in 5 Boards.

Any expert advice will be highly appreciated.

Regards

Hemanth R

Re: MK61FN1M0VMJ15

vicentegomez — Tue, 16 May 2023 22:07:09 GMT

can you please check if you have any hardware problems?

is there any difference between the good boards and the failed one?