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tuxxy
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Joined: Fri Sep 23, 2022 10:29 pm

RB750Gr3 not getting gigabit speed

Fri Sep 23, 2022 10:43 pm

I recently upgraded to a gigabit subscription and got a new modem sent by my ISP. My modem is operating in bridge mode. When I plugin a device in the bridge port I can see that I'm getting gigabit speed internet connection.

My Mikrotik RB750Gr3 is not getting anywhere near gigabit speed. Whenever I run a speedtest on my wired devices I get downloads speeds fluctuating between max 600 Mbps, 400 and even 100 Mbps.It constantly changes and I can not tell what is causing this. I never had these problems with my previous subscription (different modem) and always had the 600Mbps download speeds.

Today I did a reset and started from default configuration without any success. I made sure fast track is enabled and is the 1st rule on the firewall list.
What might be the cause and how to solve this?

My config:
 
 # sep/23/2022 21:14:14 by RouterOS 7.5
# software id = QMGA-7TGX
#
# model = RB750Gr3
# serial number = 
/interface bridge
add admin-mac=48:8F:5A:16:52:65 auto-mac=no comment=defconf name=local
/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN
add name=listBridge
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/ip hotspot profile
set [ find default=yes ] html-directory=hotspot
/ip pool
add name=dhcp ranges=192.168.200.100-192.168.200.200
/ip dhcp-server
add address-pool=dhcp interface=local name=defconf
/port
set 0 name=serial0
/interface bridge port
add bridge=local comment=defconf interface=ether3
/ip neighbor discovery-settings
set discover-interface-list=LAN
/interface list member
add comment=defconf interface=local list=LAN
add comment=defconf interface=ether1 list=WAN
add interface=local list=listBridge
/ip address
add address=192.168.255.254/16 comment=defconf interface=local network=192.168.0.0
/ip dhcp-client
add comment=defconf interface=ether1
/ip dhcp-server lease
add address=192.168.2.248 client-id=ff:e4:82:d0:7e:0:2:0:0:ab:11:e0:8f:2c:c4:fb:92:17:38 mac-address=\
    42:5F:F7:4B:E6:7F server=defconf
/ip dhcp-server network
add address=192.168.0.0/16 comment=defconf dns-server=1.1.1.1 gateway=192.168.255.254 netmask=16
/ip dns
set allow-remote-requests=yes servers=1.1.1.1
/ip dns static
add address=192.168.255.254 comment=defconf name=router.lan
/ip firewall filter
add action=fasttrack-connection chain=forward connection-state=established,related hw-offload=yes
add action=accept chain=forward connection-state=established,related
add action=drop chain=input comment="defconf: drop invalid" connection-state=invalid
add action=accept chain=input comment="defconf: accept ICMP" protocol=icmp
add action=accept chain=input comment="defconf: accept to local loopback (for CAPsMAN)" dst-address=127.0.0.1
add action=drop chain=input comment="defconf: drop all not coming from LAN" in-interface-list=!LAN
add action=accept chain=forward comment="defconf: accept in ipsec policy" ipsec-policy=in,ipsec
add action=accept chain=forward comment="defconf: accept out ipsec policy" ipsec-policy=out,ipsec
add action=drop chain=forward comment="defconf: drop invalid" connection-state=invalid
add action=drop chain=forward comment="defconf: drop all from WAN not DSTNATed" connection-nat-state=!dstnat \
    connection-state=new in-interface-list=WAN
/ip firewall nat
add action=masquerade chain=srcnat comment="defconf: masquerade" ipsec-policy=out,none out-interface-list=WAN
/ipv6 firewall address-list
add address=::/128 comment="defconf: unspecified address" list=bad_ipv6
add address=::1/128 comment="defconf: lo" list=bad_ipv6
add address=fec0::/10 comment="defconf: site-local" list=bad_ipv6
add address=::ffff:0.0.0.0/96 comment="defconf: ipv4-mapped" list=bad_ipv6
add address=::/96 comment="defconf: ipv4 compat" list=bad_ipv6
add address=100::/64 comment="defconf: discard only " list=bad_ipv6
add address=2001:db8::/32 comment="defconf: documentation" list=bad_ipv6
add address=2001:10::/28 comment="defconf: ORCHID" list=bad_ipv6
add address=3ffe::/16 comment="defconf: 6bone" list=bad_ipv6
/ipv6 firewall filter
add action=accept chain=input comment="defconf: accept established,related,untracked" connection-state=\
    established,related,untracked
add action=drop chain=input comment="defconf: drop invalid" connection-state=invalid
add action=accept chain=input comment="defconf: accept ICMPv6" protocol=icmpv6
add action=accept chain=input comment="defconf: accept UDP traceroute" port=33434-33534 protocol=udp
add action=accept chain=input comment="defconf: accept DHCPv6-Client prefix delegation." dst-port=546 protocol=udp \
    src-address=fe80::/10
add action=accept chain=input comment="defconf: accept IKE" dst-port=500,4500 protocol=udp
add action=accept chain=input comment="defconf: accept ipsec AH" protocol=ipsec-ah
add action=accept chain=input comment="defconf: accept ipsec ESP" protocol=ipsec-esp
add action=accept chain=input comment="defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=input comment="defconf: drop everything else not coming from LAN" in-interface-list=!LAN
add action=accept chain=forward comment="defconf: accept established,related,untracked" connection-state=\
    established,related,untracked
add action=drop chain=forward comment="defconf: drop invalid" connection-state=invalid
add action=drop chain=forward comment="defconf: drop packets with bad src ipv6" src-address-list=bad_ipv6
add action=drop chain=forward comment="defconf: drop packets with bad dst ipv6" dst-address-list=bad_ipv6
add action=drop chain=forward comment="defconf: rfc4890 drop hop-limit=1" hop-limit=equal:1 protocol=icmpv6
add action=accept chain=forward comment="defconf: accept ICMPv6" protocol=icmpv6
add action=accept chain=forward comment="defconf: accept HIP" protocol=139
add action=accept chain=forward comment="defconf: accept IKE" dst-port=500,4500 protocol=udp
add action=accept chain=forward comment="defconf: accept ipsec AH" protocol=ipsec-ah
add action=accept chain=forward comment="defconf: accept ipsec ESP" protocol=ipsec-esp
add action=accept chain=forward comment="defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=forward comment="defconf: drop everything else not coming from LAN" in-interface-list=!LAN
/system clock
set time-zone-name=Europe/Amsterdam
/system routerboard settings
set auto-upgrade=yes
/tool mac-server
set allowed-interface-list=listBridge
/tool mac-server mac-winbox
set allowed-interface-list=listBridge
 
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anav
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Re: RB750Gr3 not getting gigabit speed

Fri Sep 23, 2022 11:46 pm

(1) I see no purpose for the interface listBridge ???
/interface list member
add comment=defconf interface=local list=LAN
add comment=defconf interface=ether1 list=WAN

add interface=local list=listBridge

(2) Your IP pool does not jive.
/ip pool
add name=dhcp ranges=192.168.200.100-192.168.200.200
/ip address
add address=192.168.255.254/16 comment=defconf interface=local network=192.168.0.0

Try to stick to normal sized networks for testing like /24, why the heck did you pick 16 with only a pool size of 100. Where is the logic??


(3) How does this happen when your pool is from .100 to .200
add address=192.168.2.248 client-id=ff:e4:82:d0:7e:0:2:0:0:ab:11:e0:8f:2c:c4:fb:92:17:38 mac-address=\
42:5F:F7:4B:E6:7F server=defconf

Other than that looks normal.
By the way according to the router specs you should expect somewhere in the 700 range for speeds.
If you want 1 gig, look at hapac2, hapac3 or RB4011.
 
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rextended
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Re: RB750Gr3 not getting gigabit speed

Sat Sep 24, 2022 12:04 am

(1) yes, is useless, already exist LAN, but listBridge is used here:
/tool mac-server
set allowed-interface-list=listBridge
/tool mac-server mac-winbox
set allowed-interface-list=listBridge
 
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rextended
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Re: RB750Gr3 not getting gigabit speed

Sat Sep 24, 2022 12:11 am

My modem is operating in bridge mode. When I plugin a device in the bridge port I can see that I'm getting gigabit speed internet connection.
/ip dhcp-client
add comment=defconf interface=ether1
/ip firewall nat
add action=masquerade chain=srcnat comment="defconf: masquerade" ipsec-policy=out,none out-interface-list=WAN
Not, your modem is on NAT mode and you double NAT your network....
And probably your modem DHCP give address on 192.168.1.x/24 range and go on conflict with all used 192.168.0.0/16 range, as already @anav noted...


If I do not remember bad, missing ,untracked after established,related on both lines???
/ip firewall filter
add action=fasttrack-connection chain=forward connection-state=established,related hw-offload=yes
add action=accept chain=forward connection-state=established,related

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