[solved] Mikrotik hEX S RB760iGS - OpenWrt - Port 1 light only blink

7:26:08 PM DHCPc:discovering for another DHCPd on LAN
7:26:08 PM ROOT=D:\Windows 10\OneDrive\Desktop\OpenWRT\
7:26:08 PM DHCPd 192.168.1.10:67 started...
7:26:08 PM TFPTd 192.168.1.10:69 started...
7:26:09 PM HTTPd:80 started...
7:26:13 PM DHCPc:no other DHCPd discovered
7:26:28 PM DHCPd:REQUEST received, MAC:B8-69-F4-83-72-5F, XID:F42517A3
7:26:28 PM DHCPd:BOOTP REQUEST
7:26:28 PM DHCPd:ACK sent, IP:192.168.1.21, XID:F42517A3

The port 1 light only blinks nothing happens...

Where did these logs come from? This is not a normal OpenWrt log.

Please copy the output of the following commands and post it here using the "Preformatted text </> " button:
grafik
Remember to redact passwords, MAC addresses and any public IP addresses you may have:

ubus call system board
cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall

This is a log from Tiny PXE Server to install the firmware to the router...

You should probably follow the TFTP instructions to install OpenWrt... it's here on device info page:

7:53:41 PM DHCPc:discovering for another DHCPd on LAN
7:53:41 PM ROOT=D:\Windows 10\Downloads\
7:53:41 PM DHCPd 192.168.1.10:67 started...
7:53:41 PM TFPTd 192.168.1.10:69 started...
7:53:42 PM HTTPd:80 started...
7:53:46 PM DHCPc:no other DHCPd discovered
7:54:46 PM DHCPd:REQUEST received, MAC:B8-69-F4-83-72-5F, XID:84C0B0A1
7:54:46 PM DHCPd:BOOTP REQUEST
7:54:46 PM DHCPd:ACK sent, IP:192.168.1.21, XID:84C0B0A1

same.

Have you followed the guide? (connect to the wan port, press the reset button while connecting power, wait until the beep and release, etc.). Does the LED on the SFP port light up?

I have installed openWRT. I try to flash the latest firmware via Luci. and this happened

The SFP port start and then stop working. Again It start and stop working.

What specific firmware image did you download and install? And what version were you running prior to that?

openwrt-22.03.5-ramips-mt7621-mikrotik_routerboard-760igs-initramfs-kernel

This is the wrong image... you need to flash a sysupgrade build if you are already running OpenWrt. What you flashed is the initramfs version (i.e. it doesn't persist).

Try following the process of installing from scratch using the procedures described on the page I linked earlier.

I did but it shows following

7:53:41 PM DHCPc:discovering for another DHCPd on LAN
7:53:41 PM ROOT=D:\Windows 10\Downloads
7:53:41 PM DHCPd 192.168.1.10:67 started...
7:53:41 PM TFPTd 192.168.1.10:69 started...
7:53:42 PM HTTPd:80 started...
7:53:46 PM DHCPc:no other DHCPd discovered
7:54:46 PM DHCPd:REQUEST received, MAC:B8-69-F4-83-72-5F, XID:84C0B0A1
7:54:46 PM DHCPd:BOOTP REQUEST
7:54:46 PM DHCPd:ACK sent, IP:192.168.1.21, XID:84C0B0A1

Rcvd BootP Msg for IP 0.0.0.0, Mac B8:69:F4:83:72:5F [06/05 22:32:36.342]
DHCP: proposed address 192.168.2.11 [06/05 22:32:36.342]

Change the IP address from 192.168.2.0/24 subnet to different one. Now its working.

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