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Wifi issue any help please?

alshah

Hi I have a rpi 3b with sensehat attached and a touchscreen, been working fine most o fthe time, I updated it to Pixel desktop.

 

Issue I have is that daily I lose the ability to connect over wifi - I get an IP address from home dhcp router, I try and connect SSH using putty or tightvncserver but not reachable till I connect Ethernet, get a second IP address for that and then try and connect again on wifi and works fine, disconnect Ethernet and again works fine - will continue till next day or overnight shutdown when I have to go through above again.

 

Any ideas?

 

Thanks


Al

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  • 0

    I've not used my Pi for a while so not sure of how the networking is set up so you may need to tweak things accordingly but how about if you use sudo ifdown wlan0 and then sudo ifup wlan0 to disconnect and restart the wifi network? Will Wifi then get a new lease from DHCP and start working again? How about if you restart the networking service? Another thing to try could be to set it up to be pinging another machine periodically and see if regular usage on that interface keeps things working. Finally do you have another WiFi dongle you can try in case it's an issue with either the Wifi device or the driver for it?

     

    Best Regards,

     

    Rachael

Reply
  • 0

    I've not used my Pi for a while so not sure of how the networking is set up so you may need to tweak things accordingly but how about if you use sudo ifdown wlan0 and then sudo ifup wlan0 to disconnect and restart the wifi network? Will Wifi then get a new lease from DHCP and start working again? How about if you restart the networking service? Another thing to try could be to set it up to be pinging another machine periodically and see if regular usage on that interface keeps things working. Finally do you have another WiFi dongle you can try in case it's an issue with either the Wifi device or the driver for it?

     

    Best Regards,

     

    Rachael

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  • 0 in reply to rachaelp

    That's a good idea, to check with another WiFi dongle.

    I had a near-similar thing, another WiFi dongle inserted in the Pi 3 worked just fine. I had a SSD attached.

    It was driving me crazy, it seemed a really bizzare situation, but then I started noticing the WLAN reliability improving immensely (but still some loss) with ferrites and keeping cables positioned away from much of the circuitry : )

    For my scenario I didn't really need the WLAN so I didn't investigate further at the time.