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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

    Also, (this might sound strange) but do try a different power supply too, and remove the add-ons like the sense hat and screen, and as many USB connected devices as you can (especially if you have any hard disk, Flash mem or SSD attached), to see if it makes a difference. You can add them later to narrow down the issue.

     

    I also found that there was a fair bit of RFI susceptibility, (or could have been a fair bit of RFI generated from those attached devices). With the official Pi power supply and no SSD connected, all is well.

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  • 0

    Also, (this might sound strange) but do try a different power supply too, and remove the add-ons like the sense hat and screen, and as many USB connected devices as you can (especially if you have any hard disk, Flash mem or SSD attached), to see if it makes a difference. You can add them later to narrow down the issue.

     

    I also found that there was a fair bit of RFI susceptibility, (or could have been a fair bit of RFI generated from those attached devices). With the official Pi power supply and no SSD connected, all is well.

Children
  • 0 in reply to shabaz

    Thanks, I did try a fresh new build on a new microSD - I now run Pixel desktop and have latest OS, It seems the Ethernet wakes up the Wifi - I cant ping from rpi until I connect ethernet even tho it gets a valid ip address from wifi router.

     

    The power confuses me as it works fine once woken. I think its more to do with lan config somehow but I am no expert.

     

    I tried removing hat and display assuming it kept same wifi IP as ttl is 1 day. no joy till again ethernet plugged in. It worked fine after ethernet unplugged too.

     

    Thanks tho for helping