i have a customer that have 3sites. The primary site have a DC with SQL server for their accounting program. the two(2) other sites are link with IPSec connection ( with dlink router )
My problem is that when they work in the soft , they get kick out. So i was woundering if it not the internet.
at the primary site there's fiber internet .
at the two other sites, it normal adsl internet .
Do you know any program i can use to see if the internet is stable, or do you have other suggestion to resulve my problem.