I have the following device setup:
- Access router from internet provider, lets call it “Access router”
- RUT300 Teltonika router, connected via cable to router #1
- Test device, let’s call it device X, connected via cable to RUT300
And now, I connect device X to RUT 300 and test if it has internet connection. Device X has an application that is calling external servers via TCP and additionally has a ping command available. Neither is working.
Now, I switch the device X to access router, by skipping RUT300. Everything works perfectly.
After that I switch device X back to RUT300 and surprisingly it works fine as well. Both the TCP connection to servers and ping command.
But after 5-15 minutes it stops working again.
This scenario is repeatable.
The RUT300 router doesn’t have any custom configuration. It’s a device freshly out of the box. I just updated the OS to newest one: RUT30X_R_00.07.07.1.
The device X doesn’t have any special network config as well. It’s set to accept params from DHCP.
How can I figure out what might be happening here?