@Ethan-TP For approximately two years I have been running an ER8411. At the beginning, I used four WAN connections, three of them with Ubiquiti Networks UFiber Nano G ONTs. All three identical ONTs...

@MR.S Is not downgradeable firmware...

ER8411 have many problems with WAN... i have problem with my 2 ISP, DIGI and O2 in Spain...

I updated my router to the last software because i had some problems about "physical disconnection" in my WAN ports. After update to 1.3.6 i have MORE "pysical disconnection ports" even SFP+ and...

@Clive_A Yesterday I updated to the new firmware 1.3.1 and everything worked without errors, but today I had some micro-cuts as well. I did not get any PADI or PADR or authentication errors with the...

Here can see, after create my post, few hours have peaks on CPU. Now router is configured in DHCP and have random disconections everytime have peak on the CPU. And disconections affect SFP+WAN1 and...