Freez Problem?

Hi mccyrille

I do not work for Wiznet and also not an arduino user :slight_smile: but I am also facing similar issues as yours. On you first issue, it seems like you are not holding the nRESET long enough. Try holding the nRESET low for 100ms, then hold it high for about 500ms before doing any read/write to W5200. It does not seem to hard reset the part properly if I use the same timings as wiznet has mentioned in datasheet, shame. Applying hard reset for longer duration seem to have fixed my problem and I am able to connect all the time reliably.

On your second issue of no response to ping, I am also facing similar one and looking for some help. see my issue here. Wiz820io stops responsing to PING after few hour of running

thanks