Fast speed on two computers (480Mbps) slow on all others, phoes, etc. (96Mbps). RBR850, RBS850

SOLVED! Apparently the slower speed was caused by a poor cable connection in one of our 110 punch down blocks. I am on oxygen, recuperating from Covid (low energy to solve problems or do much physically). I showed my wife how to use a punch down tool and she went up in the attic and "reasserted" all the punch down connections on the terminal strip. Before Orbi, I have seldom intermittant connections, but I did have the occasional issue. I think Orbi is more sensitive to cable/connection quality and downgraded a whole section of our network to 100Mbps. Anyway, all fixed now. Thanks for your help.