Poor performance with CRS125-24G-1S-2HnD-IN

RouterOS Beginner Basics
1

I am hoping that someone can help me figure out some performance issues that I am running into with some extremely poor performance I am getting on a new CRS125-24G-1S-2HnD-IN.

My ISP in my area recently upgraded to 300Mbps/20Mbps from 100Mbps/5Mbps. I had been using a RB2011Ui before the upgrade, but I used this as an opportunity to get the entire network to gigabit.

I have tried multiple configurations with the CRS125 and, at best, I am getting 20Mbps/20Mbps.

Right now I an running an almost completely default configuration. The only thing I have modified are some DHCP options. When I am wired directly into the cable modem, I do get the speeds that I expect. When I plug into the CRS125, my speed drops dramatically. All of the line quality tests are coming back clean and the cable company has validated the configuration on their end. The only non-optimal thing that I am dealing with right now is that I am double natted when I am running through the CRS125 so I can wire into the cable modem. I had the modem running in bridge mode but I changed it back so I could test connections on the outside of the router.

The only thing that I haven’t tried yet is turning fastpath on. Even without that, though, I think I should be getting higher speeds than I am currently getting.

Can anyone point me in a direction of something else to try? I really don’t want to give up and go with just the cable modem.

Thanks,
Matt

2

Update: I removed the CRS125 from the network and put the RB2011Ui back in. I am getting ~250Mbps/20Mbps. I’m starting to think that there might be something wrong with the CRS125, but I’d like to try any suggestions that people smarter than I am might have.

3

Try fasttrack.

4

CRS125 should provide the same routing performance as RB2011.

5

http://forum.mikrotik.com/t/slow-speeds-when-setting-crs125-ports-to-gig/77450/1

6

Exactly… This is why I’m thinking that there is something wrong with the CRS125 I have or that I have something very wrong with the config.

Thank your, sir. I’ll give it a shot this weekend and report back. This sounds very much like what I was seeing.

7

getting crs 125 as a upgrade from rb2011 form routing perspective its wrong

crs will do some worst than rb2011 routing performance because some cpu resources are used to manage 24 port switch

8

Look at the product pages. They show the same.

The CRS will be better at routing if you’re forced to use a bridge on the RB2011 while being able to avoid it on the CRS125.