LDN - Luminis Developer Network

Ever since I applied hotfix 4.2.1.125 I have had many problems with the CPIP connectors. I was on the prior hotfix, 4.2.1.78, and there were very few CPIP connector issues. The problems with the cpip servers have become so bad that I restart them hourly with cron. Has anyone experienced problems like this? Also, has anyone upgraded to either the 4.2.2 or 4.2.3 branch and experienced CPIP connector problems?