Hey @Easier,

Are you using your Range Extender in a One Mesh Setup or Just as a Range Extender. I would recommend that you assign the range extender a Static IP so that it can have a guaranteed path for its connection to the router.

Does the internet seem to cut out on a pattern? Like when a second device starts using the network or when the network gets congested?

If you access the interface for your RE, you should be able to check the device logs to see if there is anything out of the ordinary that could indicate the issue. You may also be able to check the logs of your router to determine if the disconnect is happening there.

What router do you have, does this happen when connected to the extender via Wi-Fi too? or only over Ethernet. Does the Application state that the RE has an internet connection

  @Easier,

So the fact that all the lights are staying green and you are able to load a page, albeit slowly, over wireless means that the Range Extender is not actually losing its connection to your main network and there is some kind of communication error between your RE and router. It sounds like your PC just gives up on connecting to the internet when the issue occurs lol. 

The reason that I ask for a pattern, is that if it happens repetively, it may be happening because the DHCP lease is not renewing correctly. 

I am not familiar with the settings on that router, but you may want to look for a setting for Roaming or for Quality of Service(QoS). For most devices, these are the settings that cause issues after a connection has been established. 

There is also an interface for Range Extenders that can be accessed through the Web instead of the Tether App. I would recommend looking here to see what may be causing the connection to drop.

  @Easier,

Since the connection is cutting out after a period of time, and then reconnecting; I would try to assign a Static Ip address to your computer, this way your computer will always have a guaranteed path for its data to travel through. This sounds like it may be an issue with the DHCP server not assigning a new IP address in time

  @Easier,

Alright so I combed through our internal docs for a similar issue or case, and the only one that sounds similar to yours has to do with the 5Ghz band dropping out and needing a few minutes or a manual restart. The doc says that the issue is known to only happen with Verizon Fios Routers, and is a result of a setting called DFS Channels During Channel Scan. 

The Solution for that Issue

Disable DFS Channels during Channel Scan option on the Fios G1100/G3100. You may choose a 5GHz channel manually on the channel setting page.

With this DFS Channels during Channel Scan option enabled, the Fios router may jump to the DFS channel after finishing the Channel Scan process, and the range extender won’t be able to connect to the network during the whole process, thus you may experience at least 2 mins disconnection.