Android DoT and Windows 11 Chrome DoH stops working

For the past week on four android devices using NextDNS as DOT in the private search as well as on my PC using Chrome with it set to use NextDNS as DoH a couple time a day I'm unable to access the internet. For That android devices it says private DNS server cant be accessed. For my windows PC the browser just can't load any pages. Now this only happens on wifi for my android devices not with the cellular network. After about 15 minutes to a half hour it fixes itself and then everything is good. On my router I have NextDNS set up as the DNS provider doing it old school with just the IP addresses and that works fine for the devices that I don't have set up with DoH or DoT like my Chromecast's and wireless camera's. Any idea what's going on? It's been running fine for months and now I've been having issues.