This is not really fun since I have called technical support 3 times over this issue (Christopher-L1, -John-L2-, Gilbert-L1-, Amy-L2-). Now, I realize that each technician can only help so far so I don't blame them, but I certainly like how it is like your problem is fixed when it isn't and to call back again and again.
Troubleshooting:
*Changing channels
*Changing router IP
*Changing settings "in tandem" reducing gigabit wan to 10/100 and changing channel to 6
*Reflashing firmware
*Turning off router firewall
*Changing RTS values
Update: 3-5 minutes after rebooting or resetting wireless, connection drops and SSID no longer appears for any wireless clients (ATT 8925 and Gateway m285). Log file still shows "wireless restart" and then a few minutes later shows "timeout" for device that was connected, however wireless settings seem fine on router.
I have been told to wait 30 minutes to an hour for settings to take place twice and call back if I still have issues. I thought setting changes took place immediately after reboot or setting change.
I have been told by a Level 2 technician that my device is working properly and is most likely interference with other devices. (product specialist is supposed to call me on Monday, but only because I specifically requested it)
Maybe someone can help me with this: If I did have wireless interference and my notebook is 3 feet from the router. Should I be able to still stay connected since it is closer to the signal than a possible interfering device that must be at least 20 feet away or on another floor of the apartment complex?
As a sidenote, I have not made any mention of using 1.16 ... only 1.15 and 1.13 firmware.
Thanks again for your help.