Significant Drop in download speed cbr750

2700 sq ft, two satellites. Really everything has been amazing up until I installed latest firmware. The locations of my satellites haven’t changed and good distance apart. The satellites light up as expected, no yellow or pink lights. They are not blinking either. I am having an xfinity tech come out to check my cables inside and out to rule out ISP since it is a newer construction community.

I do the speed test on a computer hard wired into the main orbi and on my phone sitting a foot away from main unit. This didn’t happen before and never had to tweak my settings. Both ways as of right now give me less than 600. Before this issue, I could pull 1200+ MPs on my phone ANYWHERE in the house until a couple days ago so something is up. Will check those other settings and reply shortly. I am not hooked up for armor but I periodically check to make sure the devices connected to my network are good and I change my internet password every six months. I purchased the orbi products to not have to pay Comcast a monthly fee to rent equipment. If I start paying for armor and Netgear customer service I might as well pay xfinity since it only costs 15 bucks a month and they provide all that security stuff. When xfinity comes out today I am going to have them hook up one of their modems to check speed. This will tell me if it is my orbi is causing my issue. Again no problems since Install and have had it since March 2021. Hoping this is just an xfinity issue.

How many devices can I hook up to to this product? I currently have 32 devices. This has also not changed and if anything I had more hooked up last month with no issues.