peterakroon

Yes, that is, delete() does the trick. But of course I walked right into it.

Please see the attached files. NTPClient_no_delete.ino - your original example, with a line added to show heap size. NTPClient_no_delete.log - output of above program showing the heap leaking 72 bytes...

I can confirm that the problems described in the first post of this issue: - don't occur with the SEP 2.3.0 Core Library. - does occur in the 2.4.0 and...