Two WiFi interfaces

OMV can have more that one card in the system, but it is not good for any system to have more than one connection active at the same time if they are on the same network as you can introduce routing ambiguity, where traffic doesn't know what port to use because they are both advertised on the network with the same host name but different ip addresses.

If the connections are wired, which is recommended for a server, you can use secondary connections by having them registered in OMV, but not configured. This allows you to use them as a segregated connection for use with VM's or possibly even docker with some fancy configurations. Alternately, you can set metrics on the connection to set connection priority, so if one fails, the other should engage.

Two connections should not cause a problem if they are on different networks.

Quote from chudak

Thx BernH

What/where omv sets a connection "active" or "inactive"?

Thats in the network>interfaces.

Edit the interface and change the method to disabled to deactivate it.

Quote from chudak

Is it on this page?

Where?

Thx

edit the connection, you will see a method option as I said above.

Quote from chudak

Can two connections be active at the same time temporarily without causing problems?

Say WiFi connected and Ethernet not connected

It is not recommended on the same network to have to connected. When you activate the connection it will connect.

Will it work? It may for some things and not for others. The double route created can have unpredictable problems. There is no real hard and fast rule on what will happen, aside from it being unpredictable.

If you want both connected for something like a failover, you would want to adjust the metrics so one connection is given priority and the other only takes over if the higher priority connection fails.