Here are the instructions I received from AcuRite when I reported that my Atlas was repeatedly loosing connection with Access randomly for 5 minutes to an hour or so. I also have a 5N1 which never lost connection during this same periods. The below did not fix my issue, and I was sent a replacement sensor.
From AcuRite support:
Thank you for choosing AcuRite. I have reviewed your ticket and found that the following article information may be helpful. Please follow the suggestions and let me know if you are in need of any further assistance.
*Bring sensor(s) within 4 ft of Access and let pair for 10 minutes minimum. This is to pair the Access and sensors together properly.
*Make sure the Access has a 3-foot clearance around it from other electronics, appliances, and windows. ***This is also for your display unit if you are using one.
*The sweet spot to get signal from the sensors to your Access. If you are looking at the Access the blue light as the 6 o'clock position and the Ethernet port as the 12 o'clock position (LEFT side of unit/blue light). If you have the left side that between 6 and 12 facing the sensor, this is considered the sweet spot to get the best signal strength between the Access and the sensor.
If the above tips do not correct your connection issue, please provide the following information.
Thank you for going through the previous troubleshooting. At this point, we would like to request a copy of the splash page for the Access. The instructions on how to retrieve the splash page are below. Once you have it, can you please reply to this email with a screenshot of the splash page?
1. Open a web browser (Internet Explorer, Chrome, Safari, etc.).
2. Enter your router address in the URL bar. The default address for many routers is 192.168.1.1 --once you have entered this, press Enter on your keyboard. (If this is not your default address, consult your router's manual for the correct address.)
3. Most routers are different. Look for something similar to "DHCP List" or "Client List". These lists should contain the Device ID addresses and assigned IP addresses to any devices connected to your router.
4. Locate the Device ID address that matches your Access's Device ID address exactly. This address will always start with 24:C8:6E
5. Next, to the Access's Device ID address, you should see the assigned IP address. Write this IP address down.
6. In your web browser's URL bar, now enter the IP address assigned to your Access, then press Enter on your keyboard. This will bring you to the splash page for the Access.
Please also provide the below information.
1.) Reply to this email with your full name, shipping address, and phone number. (For locations in Canada, please provide a physical location.)
2.) If not previously registered, provide a copy of the proof of purchase dated within the last year by attaching to this email.
3.) Locate a small white sticker on the battery door and provide the 4 digits on it.
Thank you,
AcuRite Customer Support