Satalite Broadband Issues - Maybe the dust

If there is dust where you are, or the satellite ground station is, then yes.

I don't know who your provider is, but it is eminently possible.

Their support site or helpline will be able to confirm.

I had a Telstra Satellite connection a few years back. We would lose connection as soon as as rain started falling to the west.

I would have no doubt dust would cause the same problem

No dust up at Tinaroo, but heaps of smoke. No problems using wireless connection.