Hi all - I'm running several units of a product based on the WROVER, IDF release/v4.1 on a network. Occasionally, one of the units will produce this error: #define EHOSTUNREACH 118 /* Host is unreachable */ on a socket write. The units keep WiFi online while on mains power, and the WiFi seems fine (...

It turns out that this was a known issue, and has been fixed in the current version of release/v4.1 (v4.1-520-gc3324a82a). Marking as solved.

I don't know what caused this, but recently I had a sustained power outage, which (presumably) caused a reset in my home network. Since then, everything's been back to normal. Marking this as solved.

Another couple of data points:

This only seems to occur on my home network (a Google Nest mesh).

While the delay varies greatly, all the delayed units seem to receive their packet at (nearly) the same time. All the units experiencing the delay respond simultaneously.

Hi Sprite - I misread your reply above. I would certainly like to disable power saving when running on line power. In my sdkconfig file, CONFIG_PM_ENABLE is not set. Is there anything else I need to do?

Thanks...

Hi Sprite - I doubt that would help, but I can't do that anyway. I need WiFi running.

EDIT: I have a little trouble understanding git history...are there any WiFi-related patches or updates I should be using?

Hi all - Recently, my app (running release/v4.1 on a WROVER) began experiencing a significant lag on socket input. I perform a socket recvfrom with MSG_PEEK in a relatively tight loop. When I send a message from my PC to the ESP32 (via a multicast group), WireShark shows the message immediately, but...

It's possible that you're catching a transient state for the WiFi driver. You could put the call to esp_wifi_start() in a small loop (pseudocode below): count = 0; while (rc != ESP_OK) { rc = esp_wifi_start; if (rc == ESP_ERR_WIFI_STOP_STATE) { vTaskDelay(2); count++; if (count > 3) break; } else { ...

Hi Sprite - The manufacturing engineers decided that they want to do something a little different: they want to begin with a the flash contents of a working unit that I programmed. The intention is to flash this image on a new unit, then modify the csv file containing the device-specific parameters ...

Hi all - We're ready to move into the manufacturing phase of our product. We keep the manufacturing network separate from our engineering network, so the manufacturing network has no visibility into the project tree. Our intended steps are: - erase the flash (just in case) - flash the master partiti...