Fibre & LTE failover router

alkit

Senior Member
Joined
Mar 8, 2009
Messages
790
Hi,

I think something similar has been posted before, but the latest post I see is from 2016 (or in a really budget price range).

I'm looking for a reliable fibre/LTE failover router for my office.

Basically just something that can detect when fibre goes down and immediately switch to LTE (can use a dongle if needed).
When fibre comes back online, switch back to fibre immediately.

I know many routers advertise this function, but few actually do it reliably and well. Can you advise of a stable solution?

Wifi AC/gigabit not a requirement as I can always use my existing router as an AP, and my switch is gigabit in any case.

Thanks in advance
 

killerbyte

Expert Member
Joined
May 10, 2007
Messages
3,284
I would suggest the following setup;

Mikrotik Router (any model - even the cheapest)
Huawei B315 LTE Router
Then for the WiFi I would suggest a Ubiquiti UniFi AP AC Lite

Drop me a PM and I can get you some pricing for the hardware and the setup. Won't take me more than an hour to configure everything.

This is the solution we deploy at all of our clients and one that I plan to use at home once I get a cabinet installed (got a Mirkotik RB2011UiAS-RM for free).
 

gfmalan

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Nov 11, 2013
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The Huawei B318 can do it on it’s own, plug fibre on EWAN and insert SIM.

Takes few seconds to switch and about 15seconds to switch back when fibre comes on again.

No cool features, for that you need Mikrotik etc...
 

sajunky

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Nov 1, 2010
Messages
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The Huawei B318 can do it on it’s own, plug fibre on EWAN and insert SIM.

Takes few seconds to switch and about 15seconds to switch back when fibre comes on again.
There is not B318, maybe B618?
B315s do not do automatic failover, but it will automatically pickup a connection during a start-up sequence.
 

PsyWulf

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Nov 22, 2006
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For prosumers,Mikrotik
For hands-off users,Asus RT-ACxx
 

gfmalan

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Nov 11, 2013
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There is not B318, maybe B618?
B315s do not do automatic failover, but it will automatically pickup a connection during a start-up sequence.

315 sorry, and yes it does! Using it at VoIP clients.
 

alkit

Senior Member
Joined
Mar 8, 2009
Messages
790
Are you sure you are talking about automatic failover?
Which model -22 or -936 and firmware version?

Ya, would be interesting as I have a B315 I can use but never knew it had this feature? How do you enable it?
 

sajunky

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Nov 1, 2010
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Ya, would be interesting as I have a B315 I can use but never knew it had this feature? How do you enable it?
Ethernet WAN port (LAN/WAN Port 4) can be enabled by default. Setting -> Ethernet -> Ethernet Settings

Default is Auto. Router is sensing on the startup for Internet connection on the port 4. If detected, then Port 4 is switched to the WAN mode. If not detected then port 4 is used in LAN mode and router is establishing normal cellular connection. This fallback worked for me only during startup. It is why I asked for details of the router.

You can configure WAN port for different types of connection, PPPoE, DHCP, itd. It may do fallback properly on one type connection and fail on the other, it is why it is also important to know what type of connection gfmalan have, so we can have full picture.
 

gfmalan

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Nov 11, 2013
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2,676
Ethernet WAN port (LAN/WAN Port 4) can be enabled by default. Setting -> Ethernet -> Ethernet Settings

Default is Auto. Router is sensing on the startup for Internet connection on the port 4. If detected, then Port 4 is switched to the WAN mode. If not detected then port 4 is used in LAN mode and router is establishing normal cellular connection. This fallback worked for me only during startup. It is why I asked for details of the router.

You can configure WAN port for different types of connection, PPPoE, DHCP, itd. It may do fallback properly on one type connection and fail on the other, it is why it is also important to know what type of connection gfmalan have, so we can have full picture.

I tested it with fibre and ADSL (using small Zyxel for ADSL) and the PPPoE for both.

I configure the APN for LTE, and the moment I use the EWAN connection that gets priority. So when the EWAN goes off, LTE connects and take over.

Please note that it isn’t sensing that the traffic stopped flowing, it switches when it senses a disconnected state.

That’s why I said if you need a clever solution, use Mikrotik.
Cheap solution, LTE router only.
 

alkit

Senior Member
Joined
Mar 8, 2009
Messages
790
That’s why I said if you need a clever solution, use Mikrotik.
Cheap solution, LTE router only.

Ya, would have to look at the mikrotik solution as when the fibre goes down, the actual ONT link remains up, (something I doubt the B315 can recognise as an issue).

What about a second hand draytek router? Are those as clever as the microtik when it comes to failover?
 
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