RBE971 Router and 6 RBE970 satellites

Must_Function​ what is the topology of your house - floors, square footage etc.? A 971 router and 6 satellites is rated for over 20,000 square feet, and approximately. 450 devices! If your house/building is not that big, you will see poor performance. Each node transmits very strong Wi-Fi signals (each Orbi device has a range of about 3300 square feet, and having them myself, that is no exaggeration), and when too many are placed in close proximity, their coverage areas heavily overlap. This creates excessive co-channel and adjacent-channel interference, where devices and mesh nodes spend more time negotiating airtime, backing off, and retransmitting instead of moving data. Clients may also roam poorly, constantly switching between nodes or clinging to a farther one because the signal is still “good enough,” leading to higher latency, packet loss, and inconsistent speeds. On newer bands like 6 GHz, oversaturation can break the clean-spectrum advantage entirely, negating one of its biggest benefits. In short, with powerful mesh systems, fewer, well-placed nodes almost always deliver faster, more stable Wi-Fi than blanketing the home with hardware.

If you don't have a good justification for that many devices, can you try testing from the minimal and then expand - star with a router - how do things work in its range? Then add one 970 - test again, etc.