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New modem and Hotspot tools issue

 

Just got a new modem and went into hotspot tools to forget the old modem and add the new modem. Now the wifi symbol in my tool bar shows as the double arrows after being up for a while even though it is still connected to wifi. Pointing to the double arrow gives the following:

eth0: Link is down
wlan0: Unknown link state 192.168.0.10/24
wlan0: Configured 192.168.10/24
?
After reboot the Unknown link state says Associated with Centurylink9131 and the wifi symbol shows as normal. After being on for some period of time it reverts back to the double arrows. It has also recently dropped the new wifi router and run a hotspot instead once or twice. Nothing else has changed before this behavior. I have tried reinstalling hotspot tools from the build a pi script but it has not helped.
Any suggestions?
 

In hotspot tools, click the button to "Disable Hotspot" and reboot. This will return the wifi by the clock to normal behavior. Connect to your new wifi in the shack. Now go back to hotspot tools and "enable hotspot" Reboot and you should be back on track.
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73, de KM4ACK
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Seems to be holding so far. It has been very stable for me until this issue.
 

May have spoken too soon. I ran Build a pi to check for updates and many things hamlib, fl suite etc said needs update. And then I noticed the double arrow again on my wifi.
 

Must be a RPi issue. I left HotSpot disabled overnight and when I got up this morning it had gone back to the double arrows. Not sure what the issue is.
 

I¡¯m no Linux expert, but what does the contents of your /etc/wpa_supplicant/wpa_supplicant.conf file look like?

DO NOT forget to erase the contents of the ¡°psk¡± lines before you post. I¡¯d imagine you don¡¯t want us all to see what your network passwords are. But with my limited knowledge, I¡¯d guess you have a conflict in that file that is causing issues.

¡ªMitch, N7USU
 

trl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=US
?
network={
? ? ? ? ssid="CenturyLink9131"
? ? ? ? psk=""
? ? ? ? key_mgmt=WPA-PSK
}


That is the entire file.
 

Hmmm...all that looks normal to me. I'm stumped. From what you're describing, it sounds like the Pi is randomly dropping the wireless connection and not reconnecting. I'm not sure why it would be behaving like this. Usually it's because of something in that file being off, from my understanding.


¡ªMitch, N7USU
 
Edited

Latest observations...
I loaded another sd card that I thought had been fine from before changing to the new modem and looked at its wpa_supplicant.conf file. I then edited this card to match the format and entered as follows: (The old card had the wifi network listed twice.)

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=US
?
network={
? ? ? ? ssid="CenturyLink9131"
? ? ? ? psk="****"
? ? ? ? key_mgmt=WPA-PSK
}
?
network={
? ? ? ? ssid="CenturyLink9131"
? ? ? ? psk="****"
? ? ? ? key_mgmt=WPA-PSK
}

Everything seemed fine for a while, went to bed and when I got up the double arrows were back. A little later in the morning I noticed that the double arrows had red x's on them and no network connection was working. When I hovered over the arrows it said dhcp service not running. Clicking on them says no wifi device or module or something but there was nothing to click to turn on or select a wifi ssid. When I have just the double arrows my wifi still works but not now. I rechecked the wpa_supplicant.conf and noticed it had been overwritten by something and now reads as follows:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=US
?
network={
? ? ? ? ssid="CenturyLink9131"
? ? ? ? psk="****"
? ? ? ? key_mgmt=WPA-PSK
}
?
network={
? ? ? ? ssid="CenturyLink9131"
? ? ? ? psk="****"
? ? ? ? key_mgmt=WPA-PSK
? ? ? ? disabled=1
}

The disabled=1 line was added to the second network entry. I deleted that line, rebooted and my wifi came back for now.?
 

Lots of research seems to be a sampling of this issue going back several generations in various forms.
My hypothesis...something on the network is fighting the pi for the address. I have set a static ip address to 192.168.0.230. This was the address before the new modem. So far it is stable for nearly 1 hour. I won't call it solved yet but it is looking? promising.
 

And Nope...back to the double arrows. No ideas now.
 

On Sat, Jun 27, 2020 at 09:29 AM, Michael Fury, KV4ZZ wrote:
And Nope...back to the double arrows. No ideas now.

?

Couple suggestions for you:

First, delete the duplicate entries in wpa_supplicant.conf.
This can confuse the Pi.?


Second, try changing the line update_config=0 so your file looks like below. I¡¯m wondering if the system feels free to try to change its networking config on the fly.?
Also, when the network is down you can try to run the ifconfig command and post the results.

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=0
country=US
?
network={
? ? ? ? ssid="CenturyLink9131"
? ? ? ? psk="****"
? ? ? ? key_mgmt=WPA-PSK
}
One caveat, update_config=0 May cause an issue with hotspot tools.

Jay
73 de N0SR?
 

Thank you for the suggestions. I have gone to a back up sd card first to see if something has been corrupted in the card. I had to use Jason¡¯s nuclear option on the other card to get the flmsg to update using build a pi. I do not recall how long after that I got the new modem. I will try the update_config=0 next if this doesn¡¯t work.?
 

Fresh Flash of Raspbian OS, set localization options, NO Build a pi....let it sit for about 30 minutes...Double Arrows are back!
Obviously has nothing to do with Build a Pi. Either it is something hardware related to the pi itself or it is my new router forcing something.
Guess I will just have to live with it for now.
 

I'm just reading about this issue Michael. sorry if this seems simplistic but have you clicked the double arrows and a dialogue should appear that says "Turn on wifi"?
 

I have. If I turn it off and back in again it recovers the normal WiFi signal for a while then reverts back to the double arrows. Occasionally it will drop all together to the arrows with the red x¡¯s then say no WiFi devices available. Like it forgets it has a WiFi module. On reboot it comes up normal for a while then goes back to double arrows.?
 

I¡¯m afraid you may have some bad hardware. I bought a 4B as soon as it came out and the hdmi outputs flicker every few seconds. Seems to be a fairly common problem. You might check on the Raspberry Pi forums and see if there are others with the same problem.
Jay
73 de N0SR?
 

Getting closer...
I read on an old thread about the modem radio channel select set to auto choose a channel for the wifi possibly causing issues. I set the router radio to a set channel and it seemed to hold for a while. Then it went back to the double arrows. I went and changed the channel on the router in its settings and that triggered the pi to reset the wifi connection and brought back the standard wifi logo and re-associated the pi with the router. Not sure what any of that means...

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