Orbi router has 700Mbs from Modem, gives 2.0Mbs over WIFI

I had this issue, i had 1 year of no issues, then it stated at certain times of night it would either disconnect me or go high ms so my work was impacted as was gaming. It then started affecting tother streaming connected items in the house, i have 500mb at the router from ISP(in router internet test). I have it in modem mode and WIFI off Orbi and 2 satellites. I have also cabled into satelites 4 items also and 1 wired into main Router. I get around 350-380 all over the house Wifi until this issue. I tried many things as you can see some partially helped but it wasnt until around 3:50pm that i retested below.

I tried many things, swapping, replacing, removing, adding, i ran out of idea's and, so I simply hit reset on 3 devices and re-installed at the router for a new setup, using the same WIFI SSID. Took me around 30mins i think and it was simple. Once done i went back to full speed, in some cases even higher speeds than i had originally. Next time i will simply re-install at the router on wifi as it saved me loads of tiem messing around.