Ok, so since you mentioned smart-1 cloud, its centrally managed appliances. Now, Im a bit confused by what they told you...ISP redundancy is actually NOT configured on the appliances themselves, its set via the object in smart dashboard, you just need to have at least 2 IPS links available on the firewalls (up to 10 supported in R81.10). I wish you had bit more details, but I cant logically see how probing errors could be because of smart-1 cloud, that does not sound logical to me.
Best,
Andy
"Have a great day and if its not, change it"