Weird ESP32 problem with AccessPoint firmware

Thanks, but wow! AI in action! In any case, the problem that I'm experiencing does not point to interference as the cause.
 
Yes!!!!!!!!!!!
Using the ESP01 and the older ESP32 is the combination that doesn't work. Other combinations of clients and access points work fine!!!
 
For what it's worth, I ordered some new ESP32 mini controllers. They are different from the previous in having a USB-C connector and CP2104 (allegedly) instead of a SIL2104. The reason for this is that I'm thinking that there might be some setting or code hidden in the older controllers (from 2022) that is causing problems.
 
It apparently isn't without it's problems either. There are several known problems, errata, and common pitfalls associated with the Silicon Labs CP2104 USB-to-UART bridge IC, particularly when used for programming microcontrollers like the ESP32.

You don't like AI responses, so I'll let you figure them out.
 
The antenna could be your issue with the Esp32 mini.
Boards with external antenna are preferred .

Lower Transmit Power: Reduce the Wi-Fi transmission power to prevent overloading the antenna (e.g., WiFi.setTxPower(WIFI_POWER_8_5dBm);).
also using pin 20/21 can cause issues .

its an exercise in frustration for you
 
Everybody (and some dogs) uses either 1, 6 or 11. I switched my main show router to channel 3 or 9 because there was hardly any traffic on them (according to a site survey). I understand there's some crosstalk, but I reasoned that punching through crosstalk would be easier than all the delays caused by same-channel conflicts. My show performed better then, too. So while I understand the concept, my changing to non-popular channels helped my show, and the resulting improvement was actually noticeable.
 
P. Short said:
Angus, I tried lowering the ESP32 transmit power, no luck. Thanks for the suggestion.
Click to expand...
I'd like to see you solve the issue , but it may be an anomaly with those boards .
If you are looking for reliability , the ESp 32 cam boards are a good option as they have an external
antenna and are reasonable price ....atleast they were .
 
I've changed my house network to channel 11 and the ap wifi to channel 1, without any improvement. As far as I'm concerned this whole business about wifi channels is a wild goose chase, as there is zero evidence that this was the root cause of my difficulty. It may matter later 9n, but not now.
 
The most reliable boards I have found are the Esp8266 D1 mini pro . They just work every time and all the time !
 
P. Short said:
I've changed my house network to channel 11 and the ap wifi to channel 1, without any improvement.
Click to expand...
I thought you were having issues connecting from an ESP to another ESP directly. Not all routers are created the same. We found that different routers, even from the same company acted different. Some had weird timing issues, some would even send out multiple negotiation commands, even though only one is needed. We bought hundreds of routers, looking for odd anomalies.

There may be newer firmware for your router that may correct the issue your having. Unfortunately, new releases rarely tell you what they fixed.
 
This has nothing to do with my house router. I mentioned it only to emphasize the separation of the channels.

Also, I think that some messages in this thread have dissappeared.
 
The new ESP32 modules arrived (probably costing 3x direct from China), and the only one that I tested worked fine.
 
Phil, did the bad esp32 mini boards have ETH printed on the back ?
I just went through my supply of esp32 variants and noticed I had labeled avoid purchase on
this board . I was ordering from a seller on e-bay that offered lots of 5 or lots of 10 boards .
I think they were hit and miss for functionality back then .
 
angus40 said:
Phil, did the bad esp32 mini boards have ETH printed on the back ?
I just went through my supply of esp32 variants and noticed I had labeled avoid purchase on
this board . I was ordering from a seller on e-bay that offered lots of 5 or lots of 10 boards .
I think they were hit and miss for functionality back then .
Click to expand...
Nothing like that on the back.
They came from Teyleten via Amazon back in November/2022.
 
There are a few features that you want to make sure are present:
  • At least 4MB of Flash Space
  • USB (node MCU) programming interface
  • True GPIO (Some pins are input only)
I personally have black listed two versions: The entire CAM series and the wteth01 series as not being stable.
 
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