Sorry, we didnĀ“t notice that you replied to our question here. So we wrote two weeks later a bug report.
https://savannah.nongnu.org/bugs/index.php?47305 (this link is just for your information...) Unfortunately we were in march busy with other problems. But this week we start working again at this problem. For now I only can answer your "easy" questions: Did you check that with a known-good application ? *Not yet.* What version of lwIP are you using ? *We used lwip 1.4.1 and also source from git.savannah.gnu.org (commit #70f3e5e). In both versions the problem exists.* Where did you get it from ? *Lwip webpage or git repo.* Do you use an OS ? NO_SYS=? *FreeRTOS* What API are you using ? *I have to check this.* Do you honor the threading rules ? *I have to check this.* Do you know there are web servers in the contrib tree ? *Yes, we are using netcon* We will send you the wireshark capture file later. -- View this message in context: http://lwip.100.n7.nabble.com/Acknowledge-Problem-tp25747p26129.html Sent from the lwip-users mailing list archive at Nabble.com. _______________________________________________ lwip-users mailing list lwip-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/lwip-users