I just bought a MikroTik RB2011UiAS-2HnD-IN thinking I know something about networking. Boy was i wrong. Before i had WRT-GL54 with DD-WRT/Tomato firmwares and it was all ok. But now I’m totally lost.
Here is a list of devices that i connected to MikroTik:
eth1: WAN from Cable Modem - automatic DHCP client connects me to internet.
eth2: My pc
eth3: WD TV live
eth4: Smart TV
wireless1: A laptop plus various mobile devices ( iPhone, iPad, etc.)
And now this is what i would like to achieve:
Decent wireless speeds ( across 2 - 3 rooms)
If possible, have eth2 connected to eth1 with fastpath, so i get best possible connection and lowest latencies.
Until now, i have managed this:
Get underwhelming wireless speed, topping at 35 Mbps on speedtest.net
Thats it.
My configuration is a full RESET CONFIGURATION, QUICK SET to Home AP, added security profile WPA/WPA2 AES encription.
If you need any more information, feel free to ask, i can also paste config when i get home from work.
I think i don’t really need NAT. Nor firewall. I’m mostly on the safe side of the internet, so i don’t worry about that too much. Is it possible to have NAT and firewall off and still have wireless AP? If yes, how?
Band is b/g/n, bandwidth 20/40 Above, Channel is 2712(1st channel). Both chains are enabled under Wireless interface Advanced mode. I havent cross-checked wireless link speed. I will do that in the afternoon. I get same results across broad spectrum of devices ( iPhone 5, iPad 3, Samsung galaxy S4), and all have same results ±.
I’m also worried about CPU usage. When i test internet bandwidth on speedtest.net, i get like 70-80% CPU usage at 100mbit internet. Is this normal? I would really very much like to have settings to act kind of SWITCH instead of router, but i need wireless AP.
So you say that your ISP is providing you as many public IP addresses as you want?
Frankly, I doubt that
But in case it really is like that, it’s possible of course. Simply turn off NAT, bridge all LAN ports and add the wireless interface to that bridge.
Don’t forget to disable the DHCP server.
The high CPU load deems me really strange - I haven’t experienced anything like this before. Monitoring increased CPU usage on high throughput is normal, but as a gut feeling I consider 70-80% too much for “just” NAT.
Do you experience the bementioned poor bandwidth with wired clients as well?
I’d suggest you check the effective rate which is negotiated between your 2011 and the modem. I had some issues with Thomson and Arris modems, both capable of Gigabit, in which the negotiated link was 10 or 100Mbit half duplex only. It helped to turn off auto-negotioation and hard-select Gigabit full, then re-enabling auto-negotiation solved the issue.
You can gain a little latency and CPU offload with utilizing the Switch chips in the 2011 instead of adding each and every ethernet port to a (CPU-powered) bridge.
You might wish to take a look at the Switch Chip Features.
