My 1Gig service was getting expected wifi speeds when I did a speed test on 12/5 (and every test prior). When I did another one 2/1 (and every one since) my speeds have dropped considerably, like over

The only change I think I made in that time period was I changed all networks except my guest network to the same name and password to let each individual device connect to the best network per it's s

Should the Deco unit connected to the AT&T Gateway have a different Internet Connection Type than the other satellite Deco units? I currently have them all, for both IPv4 and IPv4 set to "Dynamic IP".