OTA broken after commit #7036

[MarkusAD]

Basic Infos

• This issue complies with the issue POLICY doc.
• I have read the documentation at readthedocs and the issue is not addressed there.
• I have tested that the issue is present in current master branch (aka latest git).
• I have searched the issue tracker for a similar issue.
• If there is a stack dump, I have decoded it.
• I have filled out all fields below.

Platform

• Hardware: nodemcu
• Core Version: e6decac
• Development Env: Makefile
• Operating System: Linux

Settings in IDE

• Module: Generic ESP8266 Module
• Flash Mode: qio
• Flash Size: 4M
• lwip Variant: v2 Lower Memoru
• Reset Method: nodemcu
• Flash Frequency: 40Mhz
• CPU Frequency: 80Mhz
• Upload Using: OTA
• Upload Speed: 115200

Problem Description

@d-a-v @devyte After commit #7036 OTA no longer works, it just hangs. I traced it back to this specific commit.

[d-a-v]

I tried the OTALeds (ArduinoOTA lib using UDP to negociate) example sketch and it's still working.
Can you give more details on your setup ?

[MarkusAD]

I have several nodemcu and d1_mini_pro and they all had the same symptom, all refused authentication. I do all my own dns and dhcp services. Once I reverted my git repo back before that commit, OTA worked again on all of them. Host environment is x86_64 and arm (both 32 and 64).

[MarkusAD]

Just tried again on a pi3, same thing but this time espota.py spills "No Answer". I was beginning to think it was a linux python3 issue before I tried reverting my repo. This time on the pi with a board currently flashed with a pre #7036 sketch, ota works the first time, then ota hangs after being flashed with a post #7036 sketch.

Build environment is plain Makefiles and/or Makefiles with arduino-builder (1.8.12).

ETA: I tried several different nonosdk flavors and lwip (lm,hb,features) options, all with the same effect.

[d-a-v]

Ah I didn't try with auth.