Hello Guys.
I’m using this Mikrotik RB941-2nD-TC Router.
My desktop pc connected on Ethernet2, from few days I’m facing some problem with this port like it disconnect and reconnect which is annoying while playing online games.
So I’ve tried to connect the LAN cable into other two LAN port (ethernet 3-4) none of this two are working. On winbox ethernet 3 showing as disabled port and ethernet4 always blinking like it’s being used.
None of these two ports are working atm. So are these ports dead/gone?
You can try to replace power supply (in case it’s aging and strarting to fail to provide rated amperage).
If that doesn’t help, post complete configuration (execute /export hide-sensitive in command window), could be something weird there …
I’ve connected my mobile charger now to the router device.
If I add bridge bridge1 interface on ether4 then ether1 loss connection to internet/port(So I didn’t add bridge to ether4 to export the result)
Also, ether3 and ether4 led is not blinking normally/properly
, for example, ether3 blink very slow and if i connect the cable to ether4 and remove the cable it keeps blinking. ether2 led blinking normally.
[admin@MikroTik] > export hide-sensitive
# sep/20/2019 02:23:07 by RouterOS 6.45.6
# software id = 674T-LYHV
#
# model = RouterBOARD 941-2nD
# serial number = 66180511819D
/interface bridge
add name=bridge1
/interface ethernet
set [ find default-name=ether1 ] name=ether1-internet
set [ find default-name=ether2 ] advertise=100M-full,1000M-full
set [ find default-name=ether3 ] advertise=100M-full,1000M-full
set [ find default-name=ether4 ] advertise=100M-full,1000M-full
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n country=bangladesh disabled=no \
frequency=auto mode=ap-bridge ssid=RAKESHBRO wireless-protocol=802.11
/interface list
add name=WAN
add name=LAN
/interface bridge port
add bridge=bridge1 interface=wlan1
add bridge=bridge1 interface=ether2
add bridge=bridge1 interface=ether3
/interface detect-internet
set detect-interface-list=all
/interface list member
add interface=ether1-internet list=WAN
add interface=bridge1 list=LAN
/ip address
add address=103.92.208.135/27 interface=ether1-internet network=103.92.208.128
add address=192.168.100.1/24 interface=ether2 network=192.168.100.0
/ip dhcp-server lease
add address=192.168.100.252 client-id=1:d8:cb:8a:70:eb:ab mac-address=\
D8:CB:8A:70:EB:AB server=dhcp1
add address=192.168.100.253 client-id=1:0:be:3b:b4:23:bf mac-address=\
00:BE:3B:B4:23:BF server=dhcp1
add address=192.168.100.251 client-id=1:34:e6:ad:8e:bd:13 mac-address=\
34:E6:AD:8E:BD:13 server=dhcp1
add address=192.168.100.250 client-id=1:ac:37:43:e9:ad:ab mac-address=\
AC:37:43:E9:AD:AB server=dhcp1
add address=192.168.100.32 client-id=1:80:1:84:7d:d7:2c mac-address=\
80:01:84:7D:D7:2C server=dhcp1
add address=192.168.100.24 client-id=1:10:8:c1:f1:4:60 mac-address=\
10:08:C1:F1:04:60 server=dhcp1
add address=192.168.100.249 mac-address=34:8B:75:1B:2F:80 server=dhcp1
/ip dhcp-server network
add address=192.168.100.0/24 gateway=192.168.100.1 netmask=24
/ip dns
set servers=9.9.9.9,4.2.2.1
/ip firewall filter
add action=accept chain=input protocol=icmp
add action=accept chain=input connection-state=established
add action=accept chain=input connection-state=related
add action=drop chain=input in-interface-list=!LAN
/ip firewall nat
add action=masquerade chain=srcnat out-interface=ether1-internet
/ip route
add check-gateway=ping distance=1 gateway=103.92.208.129
/ip upnp
set enabled=yes
/ip upnp interfaces
add interface=ether2 type=internal
add interface=ether1-internet type=external
add interface=bridge1 type=internal
/system clock
set time-zone-name=Asia/Dhaka
/tool mac-server
set allowed-interface-list=LAN
/tool mac-server mac-winbox
set allowed-interface-list=LAN
[admin@MikroTik] >
The only problem I see (but doesn’t mean it’s breaking your LAN) is that LAN stuff (IP address, possibly DHCP server although I don’t see it configured) is bound to ether2 instead of bridge …
The behaviour you’re explaining might indeed indicate that your RB might be slowly dying and that you’d have to get a new hAP.