I have the EAP770, and also noticed this open network recently. I couldn't connect to it, but still feel uneasy because of it. Please give the option of turning it off?

Hi, I have the following devices: OC200 v1.0 ER605 v2.0 SG3210X-M2 v1.0 EAP690E HD v1.0 They are all using the latest firmware. EAP690E HD is using the power adapter that come with it. EAP690E HD is...