Hello SealTeam7
If Wi-Fi drops or intermittent connection on Wi-Fi will be happening when If other Wi-Fi sources such as neighboring wireless access points are using the same wireless channel, this may cause intermittent connectivity issues, even if the competing signal is relatively weak. Changing the wireless channel within the gateway can improve connectivity. Also make sure you have customized your default Wi-Fi credentials for security purpose and also that will help you in stay connected on all the devices. Please follow the steps mentioned on the link below to change the Wi-Fi channel. After changing Wi-Fi channel as recommended on the link restart the modem then we would request you to monitor the connection for next 24hrs.
http://arris.force.com/consumers/articles/General_FAQs/G34-G36-Changing-the-Wi-Fi-Channel
Let us know if this helps