= doc.FAQ.WhatFactorsContributeToStabilityProblems %TOC% *Improper use of database agent reuse rules in the Multi-Tier oplrqb.ini file *Inadequate memory *Inadequate processor count *Insufficient allocation of TCP ports in the Multi-Tier oplrqb.ini file *Lack of critical database patches or application of flawed patches *Lack of critical o/s patches or application of flawed patches *Sub-optimal kernel tuning parameters (Unix) *Use of deprecated [[OpenLink]] components *Use of [[OpenLink]] products with an incompatible databases or o/s *Use of Single-Tier drivers on top of unstable database native clients ----