WAP timeout problem

Hi List

I,m not expert in WAP but I have same problem. If i browse fast through 
the diferent pages I have not a problem but if I leave the connection on 
one page for more 40 secunde I receive Conection time-out on Nokia 8310 
GPRS or Wap  server connection droped on Nokia 7650 GPRS.

Can somebody help me.
here is log from wapbox

Ignat

2002-09-06 10:43:08 [17] DEBUG: Octet string dump ends.
2002-09-06 10:43:10 [16] DEBUG: HTTP: Status line: <HTTP/1.1 200 OK>
2002-09-06 10:43:10 [8] DEBUG: get_cookies: Examining header (Server: 
Resin/2.0.0)
2002-09-06 10:43:10 [8] DEBUG: get_cookies: Examining header 
(Cache-Control: private)
2002-09-06 10:43:10 [8] DEBUG: get_cookies: Examining header (Pragma: 
no-cache)
2002-09-06 10:43:10 [8] DEBUG: get_cookies: Examining header 
(Content-Type: text/vnd.wap.wml)
2002-09-06 10:43:10 [8] DEBUG: get_cookies: Examining header 
(Transfer-Encoding: chunked)
2002-09-06 10:43:10 [8] DEBUG: get_cookies: Examining header (Date: Fri, 
06 Sep 2002 00:52:14 GMT)
2002-09-06 10:43:10 [8] DEBUG: get_cookies: End
2002-09-06 10:43:10 [8] DEBUG: WSP: Setting Referer URL to 
<http://66.216.105.81:80/servlet/com.aclindia.messenger.wireless.WAPMessenger?topage=0&s=airtel%3Asumaira%40airtel%231724>
2002-09-06 10:43:10 [1] DEBUG: WSP: machine 0x8248cc8, state CONNECTED, 
event S-MethodResult.req
2002-09-06 10:43:10 [1] DEBUG: WSP: method 62, state PROCESSING, event 
S-MethodResult.req
2002-09-06 10:43:10 [6] DEBUG: WTP: resp_machine 62, state RESULT_WAIT, 
event TR-Result.req.
2002-09-06 10:43:10 [6] DEBUG: WTP 62: New state RESULT_RESP_WAIT
2002-09-06 10:43:10 [1] DEBUG: WSP 2/62: New method state REPLYING
2002-09-06 10:43:10 [1] DEBUG: WSP 2: New state CONNECTED
2002-09-06 10:43:11 [6] DEBUG: WTP: resp_machine 62, state 
RESULT_RESP_WAIT, event RcvInvoke.
2002-09-06 10:43:11 [6] DEBUG: WTP 62: New state RESULT_RESP_WAIT
2002-09-06 10:43:12 [6] DEBUG: WTP: resp_machine 62, state 
RESULT_RESP_WAIT, event RcvAck.
2002-09-06 10:43:12 [1] DEBUG: WSP: machine 0x8248cc8, state CONNECTED, 
event TR-Result.cnf
2002-09-06 10:43:12 [1] DEBUG: WSP: method 62, state REPLYING, event 
TR-Result.cnf
2002-09-06 10:43:12 [1] DEBUG: WSP 2/62: New method state NULL_METHOD
2002-09-06 10:43:12 [1] DEBUG: Destroying WSPMethodMachine 62
2002-09-06 10:43:12 [1] DEBUG: WSP 2: New state CONNECTED
2002-09-06 10:43:12 [6] DEBUG: WTP 62: New state LISTEN
2002-09-06 10:43:12 [6] DEBUG: WTP: Destroying WTPRespMachine 0x8226c10 (62)
2002-09-06 10:43:57 [6] DEBUG: WTP: Created WTPRespMachine 0x825c028 (63)
2002-09-06 10:43:57 [6] DEBUG: WTP: resp_machine 63, state LISTEN, event 
RcvInvoke.
2002-09-06 10:43:57 [6] DEBUG: WTP 63: New state INVOKE_RESP_WAIT
2002-09-06 10:43:57 [6] DEBUG: WTP: resp_machine 63, state 
INVOKE_RESP_WAIT, event TR-Abort.req.
2002-09-06 10:43:57 [6] DEBUG: WTP 63: New state LISTEN
2002-09-06 10:43:57 [6] DEBUG: WTP: Destroying WTPRespMachine 0x825c028 (63)
2002-09-06 10:43:58 [6] INFO: WTP_RESP: resp_machine_find_or_create: 
abort received, yet having no machine