I was using the following network configuration for the past years at a private house:
ISP → RB-750 Router → unmanaged switch → 951Ui-2HnD as AP (x2 - one on each floor)
My ISP provides me 100 Mbps bandwidth, and speedtest.net actually gives me 90+ result via a wired connection to the switch. However at my desk over WiFi at a relatively close distance from the 951Ui-2HnD i get something like 35 Mbps.
I decided to upgrade my APs to cAP AC (RBcAPGi-5acD2nD) hoping to get more bandwidth over WiFi (5Ghz support).
I used the “WISP AP” configuration to set up the AP in bridge mode + configured (or at least tried) the wlan1 interface in order to support 2 Ghz.
However after placing the cAP AC at exactly the same spot where the old 951Ui-2HnD used to be (wall mount) and measuring the actual bandwidth from my desk I get considerably worse results - about 25-20 Mbps on 5Ghz and only 15 on 2 Ghz. Tested this several times, results are consistent.
I hope I am doing something wrong. Please advise.
# jan/02/1970 00:11:28 by RouterOS 6.47.10
# software id = PCNX-FX27
#
# model = RBcAPGi-5acD2nD
# serial number = E2810FD988B3
/interface bridge
add name=bridge1
/interface wireless
set [ find default-name=wlan1 ] country=russia disabled=no frequency=2462 mode=\
ap-bridge ssid=SavNet wireless-protocol=802.11
set [ find default-name=wlan2 ] band=5ghz-a/n/ac country=russia disabled=no \
frequency=auto mode=ap-bridge ssid=SavNet_5G wireless-protocol=802.11
/interface list
add name=WAN
add name=LAN
/interface wireless security-profiles
set [ find default=yes ] authentication-types=wpa-psk,wpa2-psk mode=\
dynamic-keys supplicant-identity=MikroTik wpa-pre-shared-key=*** \
wpa2-pre-shared-key=***
/interface bridge port
add bridge=bridge1 interface=ether2
add bridge=bridge1 interface=wlan2
add bridge=bridge1 interface=wlan1
add bridge=bridge1 interface=ether1
/ip neighbor discovery-settings
set discover-interface-list=!dynamic
/interface list member
add interface=ether1 list=WAN
add interface=ether2 list=LAN
add interface=wlan2 list=LAN
add interface=wlan1 list=LAN
/ip address
add address=192.168.88.10/24 interface=ether2 network=192.168.88.0
add address=1.1.1.1/8 disabled=yes interface=ether1 network=1.0.0.0
/ip dhcp-client
add interface=bridge1
/ip route
add distance=1 gateway=192.168.88.1
So basically you have a flat network, ONE subnet which is used on both 2ghz network and 5gh network??
First thing is upgrade your RouterOS to at least 6.48.6 long term.
5GHZ
mode ap bridge
band: according to your needs AC only is best, then if you need N, N/AC, if you need A, then A/N/AC
Channel width: try 20/40 Ce
Frequency 5500
WPS disabled
WMM support enabled
2GHZ
mode ap bridge
band 2ghz according to your needs, G/N is best, if you need B, then B/G/N
Frequency ( check your area and pick least used frequency of either 1, 6,11)
WPS disabled
WMM support enabled
Thank you @anav, will try this in couple of days (when back at the house) and post the results!
So basically you have a flat network, ONE subnet which is used on both 2ghz network and 5gh network??
I guess so. At least I did not intend to separate any subnets. This is a simple home setup, don’t need anything fancy - just want good coverage and bandwidth. But if I do need to separate for some reason - please let me know.
…could it also be the fact that 951Ui-2HnD actually has a lower value antenna gain compared to cAP AC? https://mikrotik.com/product/cap_ac
Antenna gain dBi for 2.4 GHz 2
Half a dB difference in antenna gain is almost negligible, but 951Ui-2HnD is a high-power device.
My guess is the (radio) environment. Even venerable 951 should be able to do better than 50Mbps in fair radio conditions.