Blink Sync Module 2 will not connect to XB8-T

I am at my ends. My Blink homse security system has been working up until mid February. Ive worked with blink and tried a replacement sync module. We deternimed the issue was with the XB8-T. I called Xfinity and they sent a tech out to my home for something that a tech did not need to come out for only for him to call someone else and they state that the router I have is no longer compatible with Blink anymore and I would need to buy a new home security system. I am in aw that this is the resolution offered by Xfinity. I did some troubleshooting and attempted to split the 2.4 from the 5 and 6 and rename them and give each their own password. I then tried to rebot the Blink sync module with no luck. I also tried to change the security from WPA3 to 2 and that didnt resolve it either. After talking with xfinity and blink there seems to be an update that xfinity has done that no longer makes their router compatible with Blink. So the resolution would be to get a router that is compatible but Xfinity will not tell you that, they told me instead I need a different home security system. This dishonestly has led me to consider switching to verizon and spending the extra money in hopes of getting better support from them. If anyone is having the same issue and can suggest a fix that would not require addition cost from the cunsumer Id be greatly appreciative for them to share. Xfinity you are failing drastically as support for this issue.