[Zope] Zeo Client hanging

Hello, We have been having problem with our production servers. We currently have: zope 2.8.5 + zeo python 2.3.4 (red hat distribution) Red Hat RHEL 4 Plone 2.1.2 Our zeo clients hang intermittently. We have no way of reproducing the problem, but it occurs daily. The client hangs and a restart seems to fix the problem. In the event log with tracing on we get Trace zeo.zrpc.Connection(C) wait(16697) {server:8100} pending, async=0 There are hundreds to thousands of these until the server is restarted. In the zeo log we get Error caught in asyncore asyncore.py error:(110,'Connection timed out') We have been trying to track this down and have had no luck. Does anyone have any suggestions? Thanks, Paul