Off-Topic > Off-Topic - Tiny Core Lounge
iwlist scan shows non-existent hotspot
GNUser:
Reloading the wireless interface's kernel module before scanning is a good-enough solution for now.
If I find a more direct way of clearing the cached scan results, I'll post it here.
If someone beats me to the punch, please do share ;)
jazzbiker:
--- Quote from: GNUser on May 27, 2020, 01:31:57 PM ---II have to scan a second time in order for the nonexistent hotspot to disappear from the scan results.
--- End quote ---
You wrote this.
GNUser:
I don't like that "solution" because I don't have any guarantees--I don't know for how long entries live in the cache.
Maybe it's just by accident that a second scan works. Perhaps if second scan completes quickly enough, the non-existent hotspot will still show up...
Rich:
Hi GNUser
I just turned on a Netbook to see what shows up in sysctl for wireless networking and this provided many results:
--- Code: ---sudo sysctl -a 2>&1 | grep -i wlan
--- End code ---
I recommend researching the names containing time or delay for starters.
GNUser:
Thank you, Rich. I took a look and the output and there are indeed several candidate parameters.
Unfortunately, even with help (https://www.kernel.org/doc/Documentation/networking/ip-sysctl.txt) it's hard to find what I'm looking for given the highly technical verbiage. I'll explore this further when I have more time.
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