hey guys I’m facing a problem with my rb4011 the isp is giving 300Mb and i am getting it with success in my rb but when clients try to use it with cable or wireless it just gives max 120 Mb I checked the negotiate status and it was 1g full duplex in client and mikrotik there was not any switch in middle and the cable is cat5e and clients support 1g
and there is no limit bandwidth on mikrotik and just 10 mangle rules for traffic routing to VPN and some 10 routes for some destinations some filter rules for blocking attacks and 20 nat ruls and that’s it
how did you check it was only 120Mb you know that’s already more then 100mb as you indicate in the title so you’re already giving wrong info which does not help to get the problem detected and do you see how annoying it is not to use proper punctuation and sentences ?
sorry i am not a native English speaker and i’m sorry for the confusion, so the 120Mb is not really 120 i don’t even know how is this that i am getting 120Mb on client side.
this 120Mb is just when using wlan 5g and even when its showing 120 on client Device in the mikrotik itself the wan port rx/tx is not going more than 100Mb.
thanks for your response and excuse me again for my bad English 
English is not the problem (I’m not a native English speaking person either. My mother tongue is Dutch, I also speak French).
But I do use proper punctuation and sentences. Makes it a LOT easier for others to read the info 
You still have not really responded to the question:
how do you know you only get 120Mb ? What test did you do, on which device, testing to where, connected how (I assume you mean 5GHz wifi but have your verified it IS connected to 5GHz and not 2.4Ghz ? )?
If you connect a computer with cable to your router, do you get full speed then ?
Also, since you have RB4011, that device has 2 bridges (with some odd config consequences I am not fully familiar with).
So it might be important as well to make sure that the full path you are using for testing for now (from test device to end point) is crossing only 1 bridge.
Try cabled connection first, then see how Wifi goes.
yes im sure that it was 5GHz band and i tested it with speedtest.net with a server that is near my location (<1km).
i saw that in winbox switch section the RB4011 has 2 switches but it can be related to that? my lan network is from the port 6 - 10 and my wan is on port 2.
(i made a bridge for lan network and routed traffic)
And again you did not answer all questions 
What do you get when you connect a PC using ethernet cable to your router ?
If possible, try to test connections from both bridges, that allows to see where the problem appears.
If both give more or less the same result, then we need to look in detail to your wifi settings.
If however results with WAN bridge are much better then LAN bridge, then your problem might be there.
Already more questions upfront:
- what ROS version do you use ?
- If ROS7, are you using wireless driver or wifi-qcom-ac (which then means you can not use 2.4GHz radio anymore) ?
with a pc and the speedtest.net (with cable connection) i got 100 max rx/tx.
i haven’t tested that if in port 1-5 have better bandwidth or not but i test it right when i arrived to office.
ROS 7.12.1v
yes im using wireless package i have 2.4GHz.
Can you in parallel also check your cables ? From PC to router and from router to WAN ?
Are the ports where they are connected reporting Gb connection (1Gbps) or Fast Ethernet (=100Mbps) ?
router to WAN is 1Gbps and client to router is 1Gbps but not all of cables are cat6 some are cat5e.
i read somewhere if i enable fast track it could fix the problem but in the mikrotik documents it says that fast track make the packets not go through mangle and vpn and so on…
Your 100Mb limit does not come from fasttrack being active or not.
Even without fastrack, that router should be able to use the full ISP connection.
If that ISP connection is what they claim it is …
Please try with PC connected to the bridge connected to WAN.
Or maybe even directly connected to ISP modem, then you are 100% sure what it should give. That’s your baseline then.
i even did this and you couldn’t believe it that i was getting 300Mb with direct WAN connection and even in mikrotik itself when i get a tcp bandwidth test to my mikrotik server in datacenter it is getting 300Mb but not giving it to clients.
So the problem appears to be your config with the 2 switches…
Can you already export your config and post it here ?
From terminal:
/export file=anynameyouwish
Move file to PC, remove all sensitive info (serial number, WAN IP, any passwd, provate keys, …)
Then paste back between [__code] [/__code] quotes for easier readability.
i did what you said i tried to place text here but it didn’t let me and it was not full so here the file of it without secret information
xp.rsc (32.9 KB)
ok i fixed it so lets say you are like me you heard about fasttrack but you couldn’t use it for all because you have VPN and firewall rules so what do you do you should do this:
/ip firewall filter add chain=forward action=fasttrack-connection protocol=udp dst-port=53
/ip firewall filter add chain=forward action=fasttrack-connection protocol=tcp dst-port=53
so with this you forward you clients dns faster and that will do it.
Oh my …
So you need to fast-track DNS connections. Since normal clients will only connect DNS server when they need to resolve FQDN into IP address (and that’s not even necessary for each connection, e.g web browsers tend to open multiple parallel connections towards the same server … and perhaps they will open new connections towards same serve rafter the old one closes … and delay in DNS resolving doesn’t affect speed of other connections) … the need for fast-tracking connections show that there’s something very wrong going on over your router. Perhaps somebody is abusing port 53 for other things (such as VPN)?