I bought a GL-AXR1800 router, to travel with.
I connect a Raspberry Pi to it, to set it up a web interface is used on port 8000 or 8888.
The Raspberry Pi is used headless, without screen and keyboard.
I can't access the web interface from another computer. (192.168.8.200:8000)
Which setting did I miss?
Are the Raspberry Pi and another computer both in the AXT1800 LAN?
- can the computer ping 192.168.8.200?
- surely if the web server of Pi is enabled? can the Pi local access the webpage 127.0.0.1:8000 or 8888?
I can ping the Raspberry Pi and using an other router I can access the the Raspberry Pi.
Only routers running OpenWrt block access.
an other router?
I did not quite know the topology of your network.
Please draw a topology figure, to show the Pi, AXT1800, an other router, PC, etc.
I think perhaps there are 2 NAT in your network.
The router is the only router in the net work.
Raspberry Pi is running Companion from Bitfocus, to setup I access companion on:
192.168.8.200:8000
The problem is in the network if I use a different router, not running openWRT, I can access the Raspberry Pi!
I can run. companion on a windows, Mac os or linux machine the problem still exists if the AXT1800 is the network router then I cant access Companion from a other machine.
The setup for the AXT1800 is out of the box. Only created a WiFi network, connection to the Raspberry Pi and Laptop is by cable.
Is the cable plugged in into LAN and not WAN?
Are they with the LAN port?
they are in same LAN subnet, so can ping and also may surely can access web service from Laptop to Pi
There connected to the lan ports
Laptop and Pi5 are in the same main subnet (LAN), router does not block/drop/reject any traffic of the LAN.
Does the AXT1800 available to ping Pi in the SSH?
sorry for the late response. (work)
The problem is in the hardware of the router! If a switch is placed between the router and the Raspberry Pi, it can be accessed! Also via the WiFi. Router handles the DHCP and WAN traffic. The networkports on the router are blocking mutual traffic.
Openwrt is blocking the traffic on the networkports (hardware) probably, I have installed openwrt on a d-link router and it gives the same problems.
Could you please provide a network diagram containing the real IP addresses of the used devices? Please keep in mind that a router isn't a switch - it wants to route between (!) networks.
On a router that does not run OpenWRT I can use the ports to provide devices with a network. With these routers I can reach the devices connected to the router with each other!
Routers that use OpenWRT as an operating system is this not possible?
I would have liked to know that before I bought this router!!
Now I still have to take a switch with me!
Same with OpenWrt.
Your config must be faulty if the devices inside the same network (192.168.8.x) can't reach each other. Double check it.
I would check the setup more than once before I open the topic!
It is not my setup! Routers based on OpenWRT do not allow access between the hardware LAN ports.
The problem only exists on routers running the OpenWRT operating system!!
It is clear that GL-iNet has no solution for this!!
Thanks for the bad purchase
That's just non-sense, sorry.
You need to bridge those ports together and ta-da 
it will work.
By default, all LAN (not WAN!) ports bridged together.