WiFi adapter not working


 
R

Rob Weber

New member
Hello all, looking for a little advice in troubleshooting a dead WiFi adapter.

I'm working with a HM v4.1. It was working fine for my last cook but the next time I have no WiFi. The Edimax adapter doesn't light up, flash, etc.
 
I get this from time to time and it's either the SD card not all the way in and needs to be pulled out and pushed back in or the connection between the hm and Pi may needs to be resettled. But, I'm pretty sure if nothing has changed in your router and Pi configuration, it's the SD card.
 
John Bostwick said:
I get this from time to time and it's either the SD card not all the way in and needs to be pulled out and pushed back in or the connection between the hm and Pi may needs to be resettled. But, I'm pretty sure if nothing has changed in your router and Pi configuration, it's the SD card.
Click to expand...

We have some new features in the 4.24 case that we haven't unveiled yet that will effectively end this possibility in the future.
 
Resat the HM to the Rpi, no luck
Found the SD card case had broken so I suspected a bad SD card - replaced with a new card and put the latest firmware (6-14) on. - No luck
Reset the HM - no luck

Rpi LED's
ACT - Green to then flashing green (reading SD card?)
PWR - Red (good 3.3v)
FDX - off
LNK - off (no LAN connectivity)
100 - off

I've tried a new Rpi - no luck
The WiFi dongle works fine when plugged into my laptop

I'm puzzled
 
I'd suggest plugging in a monitor and keyboard and checking out the wifi configuration with `cat /etc/config/wireless` and `cat /etc/config/network`. `ifconfig` will show all the interfaces and you can look and see of there's a wlan0 there and if it has an IP address.
 
I can go in to Linkmeter with the Cat5. Could low voltage to the Rpi be causing problems with driving the USB? Is there a test point on the HM or Rpi I can check for correct voltage to USB?
 
OK, all is well now. It appears the broken SD card hosed something up. As described earlier I flashed a new SD card. Plugged in the Cat5, restored all of the network, WiFi stuff and then power cycled things. Thanks for the help. I'm loving the Heatermeter and really appreciate the tech support.

Now, with all the electronic stuff out finished, comes the hard part, figuring out what to cook next.

Thanks again guys
 
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