Can't connect on LAN on Mini Router/PC RPi CM4

So it appears to be a common problem and not related to anything specific that I did. What is weird is that my mini-router WAS working just fine right up until I hit “Save” the very first time. At first I chalked it up to changing the default LAN IP and just needing to IP my computer correctly to get back into it, but when that didn’t work, I figured I would reflash it to default it back to “factory”. And now I’m left with a non-working router. I received replies from their tech support but when I tried to reply back just this morning, I got a " Message blocked
Your message to [email protected] has been blocked. See technical details below for more information." bounce back from them.