Hi,

I recently bought a RB750G since i wanted a stable and good performing router at home (100Mbps down / 10Mpbs up internet connection). I had previously used a dlink-655 and was tired of the frequent lockups and the sort of limited features.
With the RB750G i was also looking forward to learn more about networking and RouterOS.
So i hooked up the RB750G and was pleased to see that it's default configuration was pretty much all i needed to get started. I also configured the dlink as an AP to get wireless support. A nice surprise was that the dlink was much more stable when relieved from the routing/firewall duty.
So far so good.
But then i started to notice that my download speeds was lower than normal. Around this time it hit me that i could run a router as a virtual machine in my ESXi-server, so i did not really troubleshoot the issue properly. I just replace my RB750G with a pfsense virtual machine. I maxed out my internet connection effortlessly and i was happy.

But now i had a cute white little RB750G not being used and that annoyed me. So i replaced my parents Linksys WRT54GL with the RB750G.
Same story there, it worked straight out if the box. I the fired up http://www.bredbandskollen.se/ to make some highly unscientific measures of my throughput speeds.
I got about 120Mbps down and 70Mbps up.
Great, that was about 4x the speed of the WRT54GL both up and down! I was beginning to think that the slow speeds at my home was just a fluke.

But then i started to download some ISO-images from www.sunet.se.
I got about 8Mbps with the RB750G.
I got about 40Mbps with the WRT54GL.

I repeated the test a couple of times but got the same results every time.
Is there something im missing here? I would love to be able to use my RB750G but thats not going to happen if it perfomes so poorly.
What could i do?

Regards

what port did u connect to the internet?? port 1 ?

according to the news #22 it said that the performance is

Firewall Conntrack Mode 64 bytes 512 bytes 1500 bytes
N/A Off Routing 71000 66000 43500
N/A On Routing 57600 54000 43500
Off Off Rstp-bridge 91500 84200 47200
On Off Rstp-bridge 65500 64400 46500
On On Rstp-bridge 50200 47000 41600

Calculation from pps to Mbps: ((IP packet size + 18)*8*pps)/1000000

without firewall
64 bytes packets = 46,75 Mbps
512 bytes = 279,84 Mbps
1500 bytes = 528,264 Mbps

what port did u connect to the internet?? port 1 ?

Yes , i did connect internet to port 1.

according to the news #22 it said that the performance is

Firewall Conntrack Mode 64 bytes 512 bytes 1500 bytes
N/A Off Routing 71000 66000 43500
N/A On Routing 57600 54000 43500
Off Off Rstp-bridge 91500 84200 47200
On Off Rstp-bridge 65500 64400 46500
On On Rstp-bridge 50200 47000 41600

Calculation from pps to Mbps: ((IP packet size + 18)*8*pps)/1000000

without firewall
64 bytes packets = 46,75 Mbps
512 bytes = 279,84 Mbps
1500 bytes = 528,264 Mbps

Well, im not getting over ~8Mbps in "real world" testing (downloading files from different sites). Although a swedish site made for testing your internet bandwidth (http://www.bredbandskollen.se) reports great speeds. Im not sure how that site works and why im getting that differs so much from the "real world" testing, it's usually pretty reliable.

It could be an ethernet port miss-match with collisions. Try setting both ports to 100Mbps full duplex. The wrt54 is 10/100 only. The RB750G is 10/100/1000.

Tom

BTW I have an RB750G at home and pull 20Mbps with ease through my cable connection.

It could be an ethernet port miss-match with collisions. Try setting both ports to 100Mbps full duplex. The wrt54 is 10/100 only. The RB750G is 10/100/1000.

Tom

BTW I have an RB750G at home and pull 20Mbps with ease through my cable connection.

Thanks, thats a very good suggestion. I will try that as soon as i have a chance.