FIX Session Resets By Itself

1) Wondering if someone could help with some fix session issues. This doesn't happen very often, but at least once every day, mostly during the evening. For some reason which I am not able to figure out, the session resets by itself thus causing the sequence number to be reset. Any idea why? I am trying to test the app from home , which is after like few hours of inactivity. Could that be the reason?
2) Whatever maybe the reason, we do not want the session to be reset automatically. Is there a way to prevent this from happening ?

Event Log:

20100610-02:03:05: Session FIX.4.2:QA_JPMAM->QA_COSMOS:NYEOSESSION schedule is daily, 00:00:00 UTC - 00:00:00 UTC (daily, 00:00:00 UTC - 00:00:00 UTC)
20100610-02:03:05: Session state is not current; resetting FIX.4.2:QA_JPMAM->QA_COSMOS:NYEOSESSION
20100610-02:03:05: Created session: FIX.4.2:QA_JPMAM->QA_COSMOS:NYEOSESSION
20100610-02:03:13: Initiated logon request
20100610-02:03:14: Disconnecting
20100610-02:03:14: quickfix.SessionException Logon state is not valid for message (MsgType=5)
20100610-02:03:43: Initiated logon request
20100610-02:03:43: Disconnecting
20100610-02:03:43: Received logout request
20100610-02:03:43: Attempt to send while not connected (message stored until connected).
20100610-02:03:44: Sent logout response

Message Log:

8=FIX.4.29=7235=A34=149=QA_JPMAM52=20100610-02:03:13.89456=QA_COSMOS98=0108=6010=035
8=FIX.4.29=9335=549=QA_COSMOS56=QA_JPMAM34=52552=20100610-02:03:1358=Expected Seq 729 but received 110=161