Very slow wired speed

Turn the Satellites off. They don't need to be tested. What you need to test is the Orbi router with v1.x FW. The WAN speed on the router is what needs to be checked. If you can do this before it updates. 

You can try this test and see after you down grade the FW:

https://www.duckware.com/tech/router-wan-to-lan-throughput-test.html

It will have you do a factory reset then connect to the main internet behind a different router. IF you don't use the setup wizard, I presume the router shouldn't auto update till after the test is ran. I suppose you can do this as well if you manually downgrade the router on your current system and then factory reset it and run a speed test after it seems to be online and don't run the set up wizrard. 

---

epsilonkorewrote:

I have a little time before I leave for work, so I tried downgrading to the last of the 1.x firmware. Pre Daisy chain, to see if your theory is correct (makes sense to me...) I tried to downgrade my satellite and then router to 1.12.0.18... by the time I was done downgrading one satellite, then moved to the second satellite, the first satellite had already auto upgraded back to 2.0.1.4. I suppose I could unplug the internet from the Orbi so it cant detect a newer firmware, downgrade both satellites and then the router... but as soon as I plug it in for testing its going to upgrade again... we really need a way to disable auto upgrades. Wish I had woke up earlier, I need more than 30 minutes to test with.

---