Slow Wan Speed on a MikroTik RouterBoard RB951G-2HnD

Installing and Using OpenWrt
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Hi Guys, I fell in this rabbit hole this weekend! I wished i'd know OpenWRT before! I can finally get rid of my ISP router!

So I repurposed a old Mikrotik TB951g. the reflash was easy and flawless.I Configured a Vlan for my IoT, one for the Guest SSID. etc.

My only issue is the Internet speed. I have a 1Gbps FTTH internet connection with bell Canada.

the GPON was connected to a HP procurve switch, OpenWRT manage the PPPoE part.

The latency is correct but I can't barely go over 150mbps Upload and Download. I purchased a TP-Link MC220L thinking maybe the issue was with the HP switch, same speed.

The RB951G didn't seem to to be overloaded. CPU didn't rise over 40% on a speed test. (see screenshot below)

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Is there a way to optimize the WAN throughput? With the "OEM" firmware I never had any speed issue...

I did some reading on this forum but I'm still clueless about the cause of this slow internet speed.

Thanks! :wink:

1 Like
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You may want to start with reading this thread.
Do you have any Fast Ethernet (100Mbps) devices connected to the built-in or to the external switch.

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every interface mount at 1000mbps... I'll try to reconnect my ISP modem and use it in bridge mode to see if I got better speed.

I'll try to setup OPENwrt on a Virtual machine to see how it goes. I might be able to get rid of this router like that!

4

Which OpenWRT version are you using?
Are you using the default configuration of eth1 wan?
Mikrotik stock firmware uses fast track and caching to increase throughput speed.