E5-250MA LAN-to-LAN communication is blocked

[mitgobla]

I've recently joined Three Broadband with a 5G E5-250MA router. I've found that LAN-to-LAN communications appear disabled, and this is a hindrance to my setup at home.

I do not see any settings on the router admin page to disable AP/client isolation or anything related to disabling LAN-to-LAN communication.

For example, I have a media server which I would access over SSH. However, on the E5-250MA router, it times out. Both my devices are connected and access the internet, but I cannot access the devices locally. 

Is there any way to enable LAN-to-LAN communication on the router?

Furthermore, I pressed the Update button to see if it had any updates, but this says to go to a non-existent page: "Advanced -> Update". There is no update option under any of the menus. 

I've also tried connecting the router to the Three android app to see if there were any options there, but it is stuck on "Connecting to your Hub" and never gets any further than that. 

[clivejo]

What is handling the DHCP requests on your network?

[mitgobla]

I assume the router. I didn't set up anything else to handle DHCP requests.

Sorry if I misunderstood, but I thought something like this should have been plug-and-play (or connect-and-play in this case)

[clivejo]

Yes, it normally is, but having another router or other network equipment like a wifi extender can sometimes have another DHCP installed which could cause what you are seeing.

When you SSH into the media server, is it via DNS (ie ssh mediaserver.lan or mediaserver.local) or directly to IP (ie ssh 192.168.1.56)

[PeteG · Accepted solution]

Hello there. 

As far as I know, there isn't any access point isolation in place by default on the Hub. Local devices should be able to talk to each other. I'd recommend factory resetting the Hub to see what that does, and if that doesn't help fix it, I'd recommend reaching out to the Support Team for more advice. 

Pete. 

[mitgobla]

A factory reset did not resolve this but I decided to not dig into it further because it seems like the firmware is simplified on the E5-250MA router. Instead I got a TP-Link router that I've connected the WAN port to the Three broadband hub and that is working flawlessly for my setup now, and I have finer control of my network.