Did you check the minimum open server requirements for R80.30? The SMS must have allocated minimally at least 2 cores and 8GB of RAM. Hard drive must be at least 110GB (you don't have to use fixed pre-allocated, dynamic allocation is fine). For distributed gateways minimum requirements are 2 cores with 4GB and 110GB hard drive. If you don't meet these minimum specifications you'll experience the exact symptoms you are describing.
Attend my online "Be your Own TAC: Part Deux" CheckMates event
March 27th with sessions for both the EMEA and Americas time zones