ESP8266 Community Forum

- Thu Nov 05, 2015 2:34 am #33097 I think I've found an extrange issue with my ESP8266 as I can't find anything at all, regarding this, anywhere.

The problem has to do with my ESP8266's, that seem to freeze/hang up 2 networks that I use.
1) First is my home network. The router is connected to the cable TV decoder. As soon as I turn on an ESP8266 module configured to my home wifi, my TV gets frozen. Sometimes it takes 5 minutes, sometimes it takes 30minutes, but it always happens. Wifi keeps working but the cable TV stops and I need to restart the decoder.
And I have 6 ESP's and they ALL do this.

So at home, I have a 4G-Hotspot from my company that I have to turn on if I want to play with my ESP's, as for some reason, the hotspot doesn't seem to be affected by this issue.

2) The other is when I go to one office in my company, minutes after connecting my ESP to the corporate Wifi, the AP "disapears". It stops working for everyone in the office, the SSID can't be found anymore, and the IT has to reboot it. According to the IT, this has never happened to them and they had never before had to reboot the AP. I kept trying to use my ESP on that network but gave in as the Wifi kept hanging.

This happens with:
-All my 6 ESP8266-1 (bought at different times from different providers in 3 batches)
-WIth original AT firmware and with LUA 0.9.5 and 0.9.6dev_float
-While connected to the Wifi network, no need to be transmitting/receiving
-Powered at 3.3v with a 1117/3.3

Has this ever happened to anyone out there?? I know this is weird enough...
Any suggestions on what to try? Different networks (b/g/n) on the router maybe?
I was so pumped up about starting some business for IoT with this module, but a little turn down with these results now.

Thank you!

- Thu Nov 05, 2015 9:54 am #33128 I've also got strange problem since using the ESP but as there is some road work in my street I've just assume that it was the road work that disturb my home network.
Now that I think about it I had weird issue that my cellphone could not see my home network properly any-more, without that being an issue before. I think I'll turn off the ESP tonight and see if everything goes back to normal.

- Thu Nov 05, 2015 10:21 am #33132 You use 6 ESP, so you have programs inside . Show your code, you may have made a mistake that overload the network.
did you use dhcp or static IP (one per device) ?
did you set different hostname, one per device ?
witch router (brand and model) do you use ?

I'm using 12 ESP12 and 6 ESP01 at same time, no problem with network. I'm using a Cisco E3200.

(sorry if bad english, not my natural language)

- Thu Nov 05, 2015 10:34 am #33134 Touliloup, please keep me posted. I don't see how the road work may affect it but who knows. See if anything happens when you turn off every ESP in your house. Also, what router do you have? I can't tell now but I will check later at home.

vikingfr, no worries for the language, English isn't mine either (ES) but you are understood 100%.
It's not the code, as some of them are running AT firmware with code in the arduino, some others are running LUA with code in the ESP, and they still fail with no code at all in the ESP, just using LuaLoader to set AP/password, as soon as they are linked to my home Wifi, it's a matter of minutes until it freezes. So it's just the link itself

I always used DHCP. I checked and they all (sometime I only need to connect 1 to experience it) had a valid IP in the normal range (192.168.1.34/35/36...)

I've never set hostnames on the devices, but I don't think that matters, I've read hundreds of projects from other users and they all seem to work with no issues with hostnames.

I can't remember my router maker/model but I will check it tonight.
Thanks everyone for the interest