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Enter settings but instead of entering your passcode enter the following code. 4321. A second screen will appear and enter 1 (basically any number or letter will work) and then select done. This will take you to the tech setting screen. Select zones and senors and then edit zone. Pick the zone you want to edit and you will be able to change the motion setting to the one you want.
I spent more time on this jamming issue, and found an article about the interference between Zigbee and Wifi at 2.4Ghz. Here's a quick summary of my findings:
My access point at 2.4Ghz was set at channel 3, which I changed to channel 1. It would probably be safer to select channel 11, but my neighbor is already at that frequency. I'm not saying this is a definite fix, but it makes sense on paper, and doesn't hurt to give it a try. I found another person with the same issue on the forums, and his issue still persists even after replacing his hardware.
I will keep this thread posted with updates, fingers crossed.
Found the answer myself! Thought I'd post it here for others (it's surprising that this information isn't included in any FAQs or support videos/documentation):
This other forums post has the info: http://forums.xfinity.com/t5/Devices-and-Equipment
I also found it on this (unofficial) YouTube video: https://youtu.be/CMa17FeZ7xo
NOTE: This should only be needed if you replaced your Comcast Wifi Router/Gateway. If you didn't replace it, rebooting should fix the problem. If you have an entirely new Router/Gateway, you need to update the CM MAC address saved in the touch screen so that it can use the new Router/Gateway.
The trick is that the screen where you do this is not displayed when you login to Settings on the TouchScreen using your master passcode. Instead of your passcode, you need to enter 4321 as the passcode. This puts the Touchscreen into a special mode for a techincian, and there you will find the screens you need to change the CM MAC address.
From the Xfinity Home Touchscreen:
When the touchscreen completes the reboot, it should be connected to your Xfinity router/gateway. You do not need to enter the SSID/Wifi pw anywhere, the CM MAC address is all it needs.
You find the CM MAC address on your actual router/gateway. There should be a sticker that includes a couple of different MAC addresses, make sure you use the one labeled CM MAC.
That should do it.
This article says 24 to 48 hours: https://customer.xfinity.com/help-and-support/home
I have had power outages lasting the better part of a day and the Touchscreen didn't die... the screen goes dark to conserve battery power (unless you touch it to wake it up).
From what I have been able to determine:
1. Interior Follower - This is the normal which will activate only when set for away. Will not alarm when set for night or stay
2. Interior with delay - Same as above but will add delay for alarm if it goes off when set for away
3. interior follower arm night - this is similar to #1 but will alarm even if set in night mode. Only time won't alarm is in stay.
4. interior delay arm night - Same as #3 but has a countdown delay before alarm goes off
5. 24-hour inform- Will never alarm. Can be used for a motion detector to capture a video clip or to set a rule but will not set off the alarm.
Hope this helps.