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I have found zero information on how it works and the web pages are far from properly descriptive.

I have a cable LAN with 4G failover. The Health Montioring Inverval is set to 10 seconds.

Its taking ~600KB per day of data for this. Seems very high.

Questions...

1. Why is it using ANY data to check the 4G link when its Disconnected (not failed over to)?

2. If health checks are required on Disconnected links (4G link when not failed over to), how do we set it to do VERY infrequent checks which Disconnected, and also have frequent checks when Connected (in use)?

thx!

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Hello,

1. Why is it using ANY data to check the 4G link when its Disconnected (not failed over to)?

It's configuration was created to work with all three links. So it is tracking all of them to jump instantly to working one.

2. You can disable 4G link checks and leave only wired. You need to edit multiwan config over ssh. It is placed in /etc/config/multiwan

Delete wan2 section with all its options:

config interface 'wan2'
    option icmp_hosts '8.8.8.8'
    option dns 'auto'
    option health_interval '5'
    option timeout '1'
    option health_fail_retries '3'
    option health_recovery_retries '3'
    option priority '100'
    option execute '0'

P.S it's very good suggestion we will consider to review multiwan function.
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Thank you for the info. It would be great to add this feature in the GUI. I think we should not need to use the 4G data for checks until we need to fail-over. Data use costs money for no need in this case. There should be 2 separate check intervals... Connected and Disconnected.