A scan with Xirrus WiFi Inspector, shows that my Sonic router is advertising an OPEN guest network in the 5GHz band called "Sonic-5574_guest". I had specifically turned OFF all "guest" access to my Sonic line. No one else has access to my router's credentials, so I can only assume Sonic turned it on. Whether accidentally or intentionally, I cannot say.
But I encourage everyone to check their own wifi network, by some tool OTHER than the router configuration pages. You can never know for sure what your ISP is doing. And you might be liable for what is done on your account.
But I encourage everyone to check their own wifi network, by some tool OTHER than the router configuration pages. You can never know for sure what your ISP is doing. And you might be liable for what is done on your account.