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Lenovo Laptop would not connect to wifi  [Reason:INTERFERENCE ?]

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Last Modified: 2015-07-09
The Lenovo laptop connected to wifi in the moring (home setting), but by evening, it would not. (The other wifi devices connected fine).

In the cable modem, the following messages were seen in the log:

Fri Jun 26 17:27:00 2015  Notice (6)  WiFi Interface [wl0] set to Channel 6 (Side-Band Channel:N/A) - Reason:INTERFERENCE
Fri Jun 26 17:26:41 2015  Notice (6)  WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INTERFERENCE
Fri Jun 26 17:26:32 2015  Notice (6)  WiFi Interface [wl0] set to Channel 6 (Side-Band Channel:N/A) - Reason:INTERFERENCE
Fri Jun 26 07:14:28 2015  Notice (6)  WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INTERFERENCE
Fri Jun 26 06:29:16 2015  Notice (6)  WiFi Interface [wl0] set to Channel 6 (Side-Band Channel:N/A) - Reason:INTERFERENCE

rebooting the laptop did not help, and troubleshooting the wifi also did not help.

but then in the modem's console, clicking on
Press "Reset WiFi Module" to restart just the WiFi Module only.
helped. what do you see could have happened? is it a modem issue or laptop issue, if any?
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