fix: connect failed - no CPU time for IP stack #1050
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I would prefer yield() as well. I have tested it with yield() first. It didn't work. Small delay was the only option that reliably solved it (ESP32-C3 with WiFiClientSecure). It was a very tricky issue because sometimes it was successfully reconnected (CONNACK was received after reconnection) but the first connect always failed and sometimes the next reconnects randomly failed as well - always due to CONNACK timeout. |
devmirek
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ESP32-C3 is not able to receive CONNACK packet because the waiting loop did not have any delay to let other tasks to process incoming TCP packet data.