RB2011UiAS-RM - High CPU on Download

RouterOS General
1

Hi all,

Looking for some help here as im now stuck after trying a few suggestions on the forums.

I am using a RB2011UiAS-RM with BT Fibre to the premises broadband. I have just upgraded from 50 down 10 up to 150 down 30 up.

My upload speeds are reaching 30mbps fine. My downloads however are fluctuating between 80/90mbps and wont go much higher. Looking at my CPU during the download when running a speed test its running at a constant 99/100%. I’m guessing this is going to be the restriction on why it wont go above 90 for a download?

Anything I can try to resolve this problem? Can post my config if required.

Thanks
Ross

2

Hi

Do you have the latest version of ROS? If not upgrade.

Do you have any special configuration? I would suggest to perform a factory reset to default config for homeAP. This config can do 800+ out of the box.

3

Turn on fasttrack rule in ip firewall filter

4

Hate to be the one to ask.

Your WAN port is in 1-5 not 6-10? Only 1-5 are Gigabit.

5

To answer all of your questions -

I havent got fast track enabled. I think I decided a while ago not to turn it on as it stops some other things working in the router when its enabled that I currently used at the time.

I am on the latest version, and my WAN port is in port 1 which is connected to a PPPoE interface in the router.

6

I also know its not my firewall rules as I have disabled them all and tried another speed test.

7

2011 is not that powerful (cpu-wise), but it shouldn’t be as bad
See https://www.youtube.com/watch?v=BMNoRJ4Wy3E

There were some topic regarding 2011 throughput, have a look.
Also not that FastTrack can be enabled selectively, it’s not all-or-nothing switch.

Finally, if you need more input, post your config + network topology.