Is there any router can handle multiple internet lines from different ISP?

[System Error Message]

From what I've experience - bonding only works from a single provider, as this is generally layer 2, and the Layer 3 needs to be coupled end to end across the bonds.

With 2-3 wan's - load balancing and failover is a generally a good approach for high availability services - there, CARP has some options in pfSense...

https://doc.pfsense.org/index.php/Configuring_pfSense_Hardware_Redundancy_(CARP)

(uTik has similar options here, as do other Router OS's)



They won't - this is how the internet, and more importantly, even layer 2 works... you'll be fine..

Which goes back to my original statement in this thread - one doesn't really need three connections in the first place - but in an HA environment, two is enough if they're from different sources.

There are ISPs that perform bonding over other ISPs.

 

[sfx2000]

There are ISPs that perform bonding over other ISPs.

Exception, rather than the norm for consumer accounts...

 

[System Error Message]

Exception, rather than the norm for consumer accounts...

this certainly isnt a regular consumer case.

 

[Samir]

Honestly, for what your goal is, you actually have the simplest solution--3 routers. If size is an issue, you could probably scale back on the routers (most anything can handle 12Mbps these days) and just set up the existing routers as your APs.