Slow Internet FTTH

Hi all,

i've found several topics but nothing explains my porblem.

My topology: Internet -> ISP Box -> EdgeRouter Lite

I've got a FTTH Internet connection 500/200:

• when using http://www.speedtest.net/, all seems good
• but when i'm downloading a file, i'm limited to 2Mbps (20Mbps shown on ERL)
• and if i'm connected with ISP Box Wifi = 45Mbps

I have no bridge, just an openvpn (tun interface) and OSPF.

I've tried to reset my router with standard configuration, same results.

And idea?

Thank you

Note: Sorry for my english

firewall {
all-ping enable
broadcast-ping disable
ipv6-receive-redirects disable
ipv6-src-route disable
ip-src-route disable
log-martians enable
modify lb {
rule 1 {
action modify
destination {
group {
address-group ADDRv4_eth0
}
}
modify {
table main
}
}
rule 10 {
action modify
modify {
lb-group lb-default
}
}
}
receive-redirects disable
send-redirects enable
source-validation disable
syn-cookies enable
}
interfaces {
ethernet eth0 {
address xx.xx.x.xxx/24
description LAN_xx.xx
duplex auto
firewall {
in {
modify lb
}
}
speed auto
}
ethernet eth1 {
address dhcp
description "WAN 1 FTTH"
duplex auto
speed auto
}
ethernet eth2 {
address dhcp
description "WAN 4G"
disable
duplex auto
speed auto
}
loopback lo {
}
openvpn vtun0 {
ip {
ospf {
dead-interval 40
hello-interval 10
network point-to-point
priority 1
retransmit-interval 5
transmit-delay 1
}
}
local-address xx.xxx.xxx.xxx {
}
local-port xxxx
mode site-to-site
openvpn-option --comp-lzo
openvpn-option --persist-tun
openvpn-option "--user nobody"
openvpn-option "--group nogroup"
openvpn-option "--ping-restart 20"
openvpn-option "--ping 10"
openvpn-option --float
remote-address 10.xxx.xxx.xxx
remote-host xxxxxxxxxxxxxx
remote-port xxxx
shared-secret-key-file /config/auth/secret
}
}
load-balance {
}
protocols {
ospf {
area 0.0.0.0 {
area-type {
normal
}
network xx.xxx.xx.0/24
}
area 0.0.0.1 {
area-type {
normal
}
network xx.xx.x.0/24
}
}
static {
}
}
service {
dhcp-server {
}
use-dnsmasq disable
}
dns {
forwarding {
cache-size 1000
listen-on eth0
options server=/xxxxxx.wan/xx.xx.x.xx
}
}
gui {
http-port 80
https-port 443
older-ciphers enable
}
nat {
rule 5001 {
description MASQ_eth1
log disable
outbound-interface eth1
protocol all
type masquerade
}
}
ssh {
port 22
protocol-version v2
}
}
system {
domain-name xx.xxx
host-name gw-xxxxxx
login {
user admin {
authentication {
encrypted-password ****************
plaintext-password ****************
}
full-name admin
level admin
}
}
name-server 8.8.8.8
name-server xx.xx.x.xx
ntp {
server 0.ubnt.pool.ntp.org {
}
server 1.ubnt.pool.ntp.org {
}
server 2.ubnt.pool.ntp.org {
}
server 3.ubnt.pool.ntp.org {
}
}
offload {
hwnat disable
ipsec enable
ipv4 {
forwarding enable
pppoe enable
vlan enable
}
ipv6 {
forwarding enable
pppoe disable
vlan enable
}
}
syslog {
global {
facility all {
level notice
}
facility protocols {
level debug
}
}
}
time-zone Europe/Paris
traffic-analysis {
dpi disable
export disable
}
}
traffic-control {
}