New to Mikrotik LTE failover drops after 20min

RouterOS General
1

We have a RB3011 mikrotik switch here at our office. We have three internet connections two are for failover. xvideos xnxx xxx
Main: Fibre
Secondary: LTE
Last: DSL

If/when our fibre line drops we switch to LTE but this only runs for approx. 20min (I can still connect to the LTE router and use the internet, so the problem is via the LTE > MikroTik > User).

If anyone can assist or give a link to a site that could help that would be great!

2

It is hard to assist for anyone without seeing the configuration (see my automatic signature).

My guess is that after 20 minutes the fibre link gets back so your failover mechanism starts using it again but something fails there. So as the first test, you might disable or disconnect the fibre and ADSL link and see whether even in this case the LTE path stops working after those ~ 20 minutes.