Frequent WiFi disconnects/Panoramic

Been using Cox for years; I have GigaBlast and Panoramic modem (have used Panoramic for around 3 years). Recently (past couple of weeks) I've been having issues with devices randomly losing WiFi connectivity and the devices will eventually reconnect after 5-10 minutes. It seems like most of the issues have been with Apple devices (Mac, iPhones, IPads). None of these devices have had issues in the past. I have a strong WiFi signal and also have 1st gen Pods in the house (I've also tried removing the Pods - no difference). All of the Apple devices are using the latest OS versions. I can be sitting in the same room as a TV that is streaming over WiFi and I'm not getting any buffering while streaming. 

I use 2 PCs for WFH but they are connected to the Panoramic router via Ethernet; they do not lose connectivity so it's not that I am losing connectivity to Cox; I'm losing connectivity to the Panoramic Wifi. I'm not sure if this is a new Apple issue (haven't heard or seen anything suggesting that) or if maybe the Wifi in the Panoramic modem is acting up. I thought I saw that there was a "newer" Panoramic modem now available from Cox; wondering if I should try getting ahold of it to see if it resolves the issue.