DNS Resolver slow in Multi WAN when one WAN down
I am running PFsense 2.2.6 in a configuration with two PPPoe WANs in failover gateway groups.
The failover itself is working well when one PPPoe connection goes down, but not the DNS lookups.
When the first WAN (which is also the default) goes down, DNS lookups through DNS resolver are extremly slow - in fact so slow that the DNS queries from clients time out.
Any ideas about that?
Not sure if this applies but when I disabled Dns resolver and enabled Dns forwarder all my multi-wan Dns issues went away!