HomePod Mini wifi incompatible set up problem

So my HomePod mini doesn’t want to connect to my wifi to set up AT ALL! I’ve tried turning off “Auto-join” and “Auto-Login” in wifi settings. I’ve tried using a 2.4ghz and 5 ghz connection. Ive tried switch my internet from WPA2-PSK to WPA-PSK/WPA2-PSK and then back to WPA2-PSK. I’ve tried disconnecting my HomePod mini to Network reset my phone, fully reset my phone, and still see the “Wifi incompatible” message. I made sure the Home app and Music app is fully loaded on my IPhone XS. Keychain in settings is enabled. So is Siri and “Hey Siri”. I checked my router settings and my 2.4ghz connection supports 802.11n wifi connection. So does my 5ghz connection. I rebooted my router 6 times to no success. I discounted other smart home appliances and still shows: “Wifi incompatible”. I even returned a HomePod mini that showed the same error message over and over and got a new one and the new HomePod mini displays the same error message. Apple store can’t help me because I bought both HomePod minis from a different retailer. I don’t know what else is to do to get my HomePod mini setup. Can anyone PLEASE HELP!!!