CRS304 slow upload on 10G and failed auto-negotiation

[marcelser]

Hi,

I have a new CRS304 running in default switch configuration.

The uplink (ether1) of it is connected to a Zyxel XGS1250-12. I have replaced another Zyxel XGS1250-12 now with the CRS304.

Previously when the downstream XGS1250-12 was connected to the upstream XGS1250-12 the connection was 10G with approx 4GBit Down/6Gbit Up.

Now when the CRS304 is connected to the upstream XGS1250-12 the connection is only 5G so the 10G clients get around 4GBit Down/1 Gbit Up.

I tried to set 10G either on the XGS1250-12 or disable auto-negatiation on the CRS304 but then I either don't get a connection (when upstream port is fixed on the Zyxel) or the error "unsupported speed" when I try use 10G with disabled auto negotiation on the CRS304.

So I have 2 problems with my new CRS304:
1.) Why is the CRS304 unable to connect to the Zyxel with a 10G Link even claiming that it's unsupported speed even though I use Cat7 cables?
2.) Far worse otoh is the upstream speed of only 1Gbit. The 5G link should still provide around 4G upstream like it does for downstream. I don't know why CRS304 has this bottleneck to Zyxel XGS1250-12

Any help on this, especially on the slow upload speed would be highly appreciated

[jaclaz]

@marcelser

CRS304

With Mikrotik devices the model is only a small part of the story, let's say 25%. The remaining 90% or more is the configuration, post yours for review, instructions here:

Forum rules

Hello and welcome to the Mikrotik forum For all new users that uses RouterOS for the first time and have some questions regarding their config here is short tutorial on how to access RouterOS configuration using "WinBox" and how to export their configuration and posting it properly in their topic. So after you unpack your new device and connect it to the power supply you need to connect it to the PC. Be careful when connecting because to access your new router you need to use one of…

[rplant]

Try a different cable, or 2.
(Is it a long distance?)

You could try to set auto negotiation on the CRS304 but only have the 10G rate in the negotiation list.

[fchk]

1. Did you do a firmware update? In general many devices get shipped with very old firmware, and the firmware can make a difference.
2. How long is the cable? What kind of cable (flexible patch cable or installation cable)
3. Your cable may be CAT7, but no RJ45 can get to CAT7, only CAT6A. This should'nt be your current problem, but just for info.

[marcelser]

Meanwhile I swapped the Zyxel with a qnap which is quite a beast and I exchanged the cable.

Now things are running smooth. Stable 10G to the uplink qnap with proper up & down speeds of approx 7-8 GBit.

I think I can close this topic here.

[Znevna]

So for short: MikroTik sucks, here's no proof of it.
Bought something else, now everything is fine
I smell troll.
Bye.
K, not troll, just didn't explain the topology properly.
Use a pen and paper next time.

[marcelser]

Read closely before smelling trolls. I said I exchanged the Zyxel with a QNAP, no word about the Microtik. In fact the Microtik now works like a charm connected to the QNAP, it didn't when connected to the Zyxel. If it's an issue on Microtik side or on the Zyxel I was unable to figure out.

Edit: You're right next time I should probably draw it even if it's quite simple