The problem persist with disabled auto negotiation, even between two RB4011 devices.
Issue reproduced between 2x RB4011, will be fixed in upcoming beta versions.
I unfortunately can't turn off autoneg on my provider's side, so I hope a software-side fix is possible.
I do not want to promise it, but we will look forward to add 1Gbps transceiver support with
on both sides. Generally in RouterOS it is necessary to force
1Gbps mode on SFP+(10G) interfaces.
It's actually really interesting because this particular 1G module:
Works for me with autoneg on in CRS317. So what is deciding factor that makes 1G module work or not? (it's worth to mention that their copper modules don't, so it really is just this particular one that actually works).
And to prove my point here's photo:
I also tested this: https://www.fs.com/de-en/products/16271.html
and it works as well. Connecting CRS to non-Mikrotik gear was also successful. Unfortunately I tried their LX modules and it doesn't seem to work
(without autoneg off). That said I don't have 2 LX modules made by them so I tried to connect regular 10km LX to SX 1310nm combo MM/SM 2km. Maybe only one of them doesn't work with autoneg on.
So if you need LX modules and want to bite a bullet (not that 14$ sounds like kidney tbh) then I guess you can try it. If you need SX then go on. Here's how it works on CRS. I don't have RB4011 to test tho. This topic intrigued me so much that I'll probably buy another LX and another SX/LX 1310nm combo just to see whether it works. But I need to wait for salary so not this month as I'm broke ._.
I knew it's unusual from very beginning that they worked with autoneg on, so I even asked FS.COM support what's their sorcery but they didn't reveal it xD. Maybe @mikrotik you could ask them how it works to implement such thing in your official SX/LX modules? Or just simply OEM from them lul.
You do not have the required permissions to view the files attached to this post.