vms+oracle9i+apache+php error

[likuair_1]

the host system: vms8.2+oracle9207+apache2.1+php
the client system: windows xp+ ie 6.0
we can display the infomation from the client computer ,but we miss a problem about refresh the page. we refresh the page every 30 seconds,after refreshing some times,the page displays "cannot connect the host", the php code source is:

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<meta http-equiv="refresh" content="30" />

//program
?>

the apache config parameter is


Timeout 300
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 15
StartServers 5
MinSpareServers 5
MaxSpareServers 10
MaxClients 150
MaxRequestsPerChild 0

pleas help me,thanks.