HI all.

I had mesh system with 3 units E4 working perfectly fine but only getting 100mbps on Ethernet cable connected to one of them as main.

Since i have 500mbps broadband I have added new Deco M4 and even set up all network from scratch with M4 as main unit and other 3 E4 as satellites.

All seems to be working perfectly fine until I run broadband speed test app on my phone as soon as I do that main unit restart straight away switching off all network.

It comes back after few minutes but if I run speed test again it happening again.

I never had this issue with same speed test app when I had mesh with 3 E4 units - never triggered restart on those.

I have latest firmware installed but didn't change anything. 

Does anyone having similar issues?

I tried M5 unit as main but this one was restarting itself every 10min so changed it to M4 which restarts after speed test.

Would S7 works better or do i have to change all unites to be the same model, which won't be ideal as spend quite a lot of money already and cannot return any of E4 units.

Appreciate any help