A strange "spooky action at a distance" issue... Have a very simple, custom PCB which we solder Photons to. It just exposes some of the I/O onto connectors. There is a capacitor on the 3V3 to GND pins and as well as some others, and that is about it. The PCB meets with the Particle ground plane re…

@ScruffR , don’t have one unfortunately for WiFi. Tried the antenna that came with the Electron (Hexa Band Cellular), but no improvement.

No joy with the logging - looks the same (except for timings - bad Photon is quicker....). Here is the log from the Photon with the issue: 0000003667 [hal.wlan] INFO: Using internal antenna 0000003869 [system] INFO: Network Connect: SPARK_CLOUD_CONNECT && !network.connected() 0000003869 [system…

@UMD , @ScruffR , We had identical issue with surface mounted Photon. You need to remove ground loops on the board which somehow interact with the wifi module making the DHCP not working. I will post our board design for inspiration.

@dfarny , spooky ground loops.... See the picture with this post above: [image] Photon SoftAP mode - mobile cannot obtain address Troubleshooting @Scruffr , @peekay123 , @mora , @kennethlimcp , good news, we have solved the issue… ( @kennethlimcp I mentioned at the start of th…

@ScruffR , finally got a proper patch antenna (Adafruit 2.4GHz Mini Flex) to perform the experiment as you suggested some weeks ago. Have first repeated the experiment with the “bad” Photon (ie Photon on PCB) without the patch antenna - it did not serve an address (as expected). With the patch ante…

I doubt that’s fixable via firmware, but @BDub might know better. I’ve got a Photon that just doesn’t like connecting - it always takes ages no matter what FW or system. I’ve even swapped chip antennas between two devices, but the stubbord device was just as stubborn and the good one just as good. …

@ScruffR , am thinking that it could be fixable because other than the SoftAP issue, it connects a.ok to WiFi and communicates with the cloud. I sent a PCB to @mdma so that he can reproduce the fault back in April 2016.

I also noticed this issue with a surface mount photon and custom pcb The problem is random. Sometimes it work well, sometime less. But it always work with my laptop. Sometimes I’m not able to connect with my android phone, and if I try with an iphone, it works. Wifi always work well and connect e…

Try setting antenna selection to AUTO. STARTUP(WiFi.selectAntenna(ANT_AUTO)); // continually switches at high speed between antennas The problems started popping up after particle changed the default to ANT_INTERNAL, so in some cases changing back to AUTO allows your board to be used. And since y…

Would love an update to this issue, we have installed 100s of the older photons (with 4 random letters in the softAP instead of 6) no problem. Now we have just made 200 more, exactly the same circuit, but now getting “couldn’t get IP address” issues!!! Please help, this is really bad for us. Clearl…

Photon SoftAP mode - mobile cannot obtain address

Troubleshooting

UMD June 14, 2019, 12:51pm 48

@dan.s, have a look at this post I made some time ago:

Does this help?

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Photon SoftAP mode - mobile cannot obtain address

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