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Mikrotik hAP ax3 - slow download speed through wired connection

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trmns
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Joined: Tue Mar 26, 2024 7:21 pm

Mikrotik hAP ax3 - slow download speed through wired connection

Tue Mar 26, 2024 7:46 pm

I had already posted about my issue on Reddit, but I am also trying my luck here, hoping someone knows whats up and can help.
I am using a hAP ax3 and I noticed that some types of connections are behaving irrationally. (Everything which isn't TLS it seems)
I have a 1gE fiber connection and in online speedtests I achieve those speeds: I just ran three tests while writing this post and I get

fast.com: [810 Mbps, 880 Mbps]
speedtest.net: [911 Mbps, 924 Mbps]
speed.cloudflare.com: [877 Mbps, 889 Mbps]

The same holds true for game updates/downloads through e.g. Steam. The issue I have is that on non-TLS connection (but still TCP), these speeds are not achievable.
If I test the performance with iperf or through SSH (scp), things look very differently. The upload performs somewhat normally as can be seen below
(iperf3 -c <host>):
Code: Select all
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  95.1 MBytes   797 Mbits/sec    0   3.94 MBytes
[  5]   1.00-2.00   sec  98.2 MBytes   824 Mbits/sec    0   3.94 MBytes
[  5]   2.00-3.00   sec   102 MBytes   852 Mbits/sec    0   3.94 MBytes
[  5]   3.00-4.00   sec  98.6 MBytes   827 Mbits/sec    0   4.14 MBytes
[  5]   4.00-5.00   sec   111 MBytes   929 Mbits/sec    0   4.14 MBytes
[  5]   5.00-6.00   sec   109 MBytes   918 Mbits/sec    0   4.14 MBytes
[  5]   6.00-7.00   sec   110 MBytes   927 Mbits/sec    0   4.14 MBytes
[  5]   7.00-8.00   sec   105 MBytes   883 Mbits/sec    0   4.14 MBytes
[  5]   8.00-9.00   sec   112 MBytes   935 Mbits/sec    0   4.14 MBytes
[  5]   9.00-10.00  sec   112 MBytes   934 Mbits/sec    0   4.14 MBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  1.03 GBytes   883 Mbits/sec    0             sender
[  5]   0.00-10.01  sec  1.03 GBytes   880 Mbits/sec                  receiver

As you can see things totally change when I Download (iperf3 -c <host> -R)
Code: Select all
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  19.4 MBytes   162 Mbits/sec
[  5]   1.00-2.00   sec  25.5 MBytes   214 Mbits/sec
[  5]   2.00-3.00   sec  18.2 MBytes   153 Mbits/sec
[  5]   3.00-4.00   sec  15.4 MBytes   129 Mbits/sec
[  5]   4.00-5.00   sec  23.6 MBytes   198 Mbits/sec
[  5]   5.00-6.00   sec  24.9 MBytes   209 Mbits/sec
[  5]   6.00-7.00   sec  24.6 MBytes   207 Mbits/sec
[  5]   7.00-8.00   sec  21.8 MBytes   182 Mbits/sec
[  5]   8.00-9.00   sec  24.0 MBytes   201 Mbits/sec
[  5]   9.00-10.00  sec  25.1 MBytes   211 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.01  sec   226 MBytes   189 Mbits/sec  465             sender
[  5]   0.00-10.00  sec   222 MBytes   187 Mbits/sec                  receiver
The same happens when I use scp to transfer a file from that host to my machine. My ping to the machine is between 6 and 8ms
Code: Select all
scp host:tmp/2g_random .
2g_random              22%  455MB  37.2MB/s   00:42 ETA
If I upload via SCP, everything is fine (or at least good)
Code: Select all
$ scp 2cg_random host:tmp/
2cg_random                    41%  859MB 100.5MB/s   00:11 ETA
Of course one could say that the host does not support the bandwidth needed, but the host has a 10gbit fiber connection and when I download a test file through HTTPS speeds are nice:
Code: Select all
wget https://host/2g_random
2g_random                         11%[====>            ]   220M   108MB/s
I tried the latest stable OS + firmware and also the latest development version + firmware. It would be nice if anyone has an idea how to debug or fix this.

My config:
Code: Select all
# 2024-03-26 21:08:12 by RouterOS 7.15beta8
# software id = S3S2-FI0P
#
# model = C53UiG+5HPaxD2HPaxD
/interface bridge
add admin-mac=48:A9:8A:B8:BC:9A auto-mac=no comment=defconf name=bridge port-cost-mode=short
/interface ethernet
set [ find default-name=ether1 ] mac-address=64:D1:54:6D:6E:40
/interface wifi
set [ find default-name=wifi1 ] channel.band=5ghz-ax .frequency=5180-5480 .skip-dfs-channels=disabled .width=20/40/80mhz configuration.antenna-gain=5 .country=Netherlands .mode=ap .ssid="5ghz" .tx-power=20 disabled=no \
    security.authentication-types=wpa2-psk,wpa3-psk
set [ find default-name=wifi2 ] channel.band=2ghz-ax .frequency=2412-2472 .skip-dfs-channels=disabled .width=20/40mhz configuration.antenna-gain=3 .country=Netherlands .mode=ap .ssid="2.4ghz" .tx-power=13 disabled=no \
    security.authentication-types=wpa2-psk,wpa3-psk
/interface wireguard
add listen-port=13231 mtu=1420 name=wg0
/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN
/ip pool
add name=dhcp ranges=192.168.88.10-192.168.88.254
/ip dhcp-server
add address-pool=dhcp interface=bridge lease-time=10m name=defconf
/ip smb users
set [ find default=yes ] disabled=yes
/interface bridge port
add bridge=bridge comment=defconf interface=ether2 internal-path-cost=10 path-cost=10
add bridge=bridge comment=defconf interface=ether3 internal-path-cost=10 path-cost=10
add bridge=bridge comment=defconf interface=ether4 internal-path-cost=10 path-cost=10
add bridge=bridge comment=defconf interface=ether5 internal-path-cost=10 path-cost=10
add bridge=bridge comment=defconf interface=wifi1 internal-path-cost=10 path-cost=10
add bridge=bridge comment=defconf interface=wifi2 internal-path-cost=10 path-cost=10
/ip firewall connection tracking
set udp-timeout=10s
/ip neighbor discovery-settings
set discover-interface-list=LAN
/interface detect-internet
set detect-interface-list=all
/interface list member
add comment=defconf interface=bridge list=LAN
add comment=defconf interface=ether1 list=WAN
/interface wireguard peers
add allowed-address=10.0.0.4/32 comment=peer1 interface=wg0 name=peer2 public-key="1"
add allowed-address=10.0.0.3/32 comment=peer2 interface=wg0 name=peer3 public-key="2"
add allowed-address=10.0.0.2/32 comment=peer3 interface=wg0 name=peer4 public-key="3"
add allowed-address=10.0.0.5/32 comment=peer4 interface=wg0 name=peer5 public-key="4"
/ip address
add address=192.168.88.1/24 comment=defconf interface=bridge network=192.168.88.0
add address=10.0.0.1/24 comment=wireguard interface=wg0 network=10.0.0.0
/ip dhcp-client
add comment=defconf interface=ether1
/ip dhcp-server network
add address=192.168.88.0/24 comment=defconf dns-server=192.168.88.1 gateway=192.168.88.1
/ip dns
set allow-remote-requests=yes
/ip dns static
add address=192.168.88.1 comment=defconf name=router.lan
/ip 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=drop chain=forward disabled=yes nth=4,1 protocol=udp
add action=drop chain=forward disabled=yes nth=4,3 protocol=udp
add action=drop chain=forward disabled=yes nth=4,2 protocol=udp
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=accept chain=input comment="accept WireGuard connections" dst-port=13231 protocol=udp
add action=accept chain=input comment="allow access to RouterOS's DNS server via WireGuard" dst-port=53 in-interface=wg0 protocol=udp
add action=accept chain=input comment="allow access to RouterOS mobile app via WireGuard" dst-port=8291 in-interface=wg0 protocol=tcp
add action=accept chain=input comment="allow access to RouterOS webinterface via WireGuard" dst-port=80 in-interface=wg0 protocol=tcp
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=fasttrack-connection chain=forward comment="defconf: fasttrack" connection-state=established,related hw-offload=yes
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 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
add action=masquerade chain=srcnat comment=https://help.mikrotik.com/docs/display/ROS/NAT#NAT-HairpinNAT dst-address=192.168.88.0/24 dst-port=22 out-interface-list=LAN protocol=tcp src-address=192.168.88.0/24
add action=dst-nat chain=dstnat comment="This rule changes the IP of all packets which are from the external network and directed to tcp:<external_ip>:22 to tcp:192.168.88.124:22" dst-port=22 in-interface-list=WAN protocol=tcp \
    to-addresses=192.168.88.124 to-ports=22
add action=dst-nat chain=dstnat comment="This rule changes the IP of all packets which are from the internal network and directed to tcp:<external_ip>:22 to tcp:192.168.88.124:22" dst-address=<external_ip> dst-port=22 \
    in-interface-list=LAN protocol=tcp to-addresses=192.168.88.124 to-ports=22
add action=dst-nat chain=dstnat comment="This rule changes the IP of all packets which are from the internal network and directed to tcp:<external_ip>:2222 to tcp:192.168.88.60:22" dst-address=<external_ip> dst-port=2222 \
    in-interface-list=LAN protocol=tcp to-addresses=192.168.88.23 to-ports=22
add action=dst-nat chain=dstnat comment="This rule changes the IP of all packets which are from the external network and directed to tcp:<external_ip>:2222 to tcp:192.168.88.60:22" dst-port=2222 in-interface-list=WAN protocol=tcp \
    to-addresses=192.168.88.23 to-ports=22
add action=dst-nat chain=dstnat disabled=yes dst-port=5201 in-interface-list=WAN protocol=tcp to-addresses=192.168.88.124 to-ports=5201
/ip service
set telnet disabled=yes
set ftp disabled=yes
set ssh disabled=yes
set api-ssl disabled=yes
/ip smb shares
set [ find default=yes ] directory=/pub
/ip ssh
set host-key-size=4096 host-key-type=ed25519 strong-crypto=yes
/ipv6 address
add from-pool=v6-pool interface=bridge
/ipv6 dhcp-client
add add-default-route=yes interface=ether1 pool-name=v6-pool pool-prefix-length=56 rapid-commit=no request=address,prefix use-peer-dns=no
/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
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