Only getting 100 Mbps per user from a 200 Mbps link

RouterOS General
1

Hi,

My provider has increased our bandwidth to 200/20, which is great! I’ve upgraded our router to a RB2011UiAS, and connected everything using the gigabit ports.

To my surprise, when trying to launch speedtests from the internal PCs to the Internet, a single PC can only use up to 100 Mbps of the available bandwidth. With just two users I can saturate our uplink, but one user never passes 100 Mbps. I’ve checked twice that everything is connected using 1Gbps ports, but can’t manage to make just one PC to get more than 100 Mbps downloads (which is great, but only half as great as 200 Mbps).

Anyone can tell me if there is any problem with this setup? I’d appreciate if someone can share a clue or a pointer to further investigate this problem.

Regards

2

Are you using latest version? 6.30.3 ?

Do you have FastTrack enabled ?

http://forum.mikrotik.com/t/fasttrack-new-feature-in-6-29/87517/1
if not reste to default with 6.30+ version and it will be in default config

3

6.30.3 ?

4

Does the client have a gigabit port?

Did you look at the auto negotiation status on the interface page?

You should not need fasttrack to reach 200Mbps.

5

Can the RB2011 handle 200Mbps with NAT, Firewall, etc? I don’t think you will get that much speed out of a 2011.

6

RB2011 non fastpath with firewall and NAT will only net about 130mbps I believe from my testing

7

I was reaching about 210Mbps with NAT, firewall, but without fasttrack.

Note that his problem is with a single connection.

8

Thanks very much for the suggestions. I double checked the port status, autonegotiation and all that stuff and they are OK. 1Gbps full duplex, no errors… everything looks fine.

I’ve just added fasttrack to the config. Once I get it tested I’ll come back with the answer.

9

Look for cpu, how high is it?
If is on 100%, thats it

10

OK. Tests done. I still get 100 Mbps from a single PC (note that it is a single PC, not a single connection). The PC is connected directly to a 1Gbps port in the RB2011, to avoid noise from switches and stuff.

11

Is there a bandwidth limit configured?

12

Nope. Double checked it. :slight_smile:

13

At first you must determine where exactly is the limitation.

  1. Run bw test from PC to the router.
  2. Run bw (or any other test) from the router to gateway
14

Is this a VPN server limit?