Recently (approx.45 days ago) I purchased a router/modem in one device manufactured by Linksys Model # WCG200 ver.2 and everything was working just fine until the last week or so.
Basically what's happening is when i configure my router to port forward or DMZ to one pc for gaming or p2p applications the network access is denied in about an hour or two and will not give me access again unless i go to the Status window of my router and click the Renew DHCP Lease button,and even then it doesn't always allow me access to the network nor any other pc on the network.

Here is a copy of the error log i am receiving

2006-05-24 20:44:22 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out 2006-05-24 04:26:52 critical No Ranging Response received - T3 time-out 2006-05-24 04:26:40 critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing 2006-05-24 04:24:41 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 timeout 2006-05-24 04:23:29 critical No Ranging Response received - T3 time-out 2006-05-24 04:23:22 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 timeout 2006-05-24 02:40:37 critical No Ranging Response received - T3 time-out 2006-05-24 02:40:25 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 timeout 2006-05-24 02:39:35 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out 2006-05-23 08:06:40 critical No Ranging Response received - T3 time-out 2006-05-23 08:06:13 critical SYNC Timing Synchronization failure - Failed to acquire FEC framing 2006-05-23 08:04:45 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 timeout 2006-05-23 08:03:31 critical No Ranging Response received - T3 time-out

I've talked to my isp and they have found no problems on their end and before I had this device i had a Linksys modem and router seperatley and it has never had the problems that this one is doing.
not sure if it's a configuration problem/router problem/pc problem or just dumb luck. any help is appreciated and thatnks in advanced.
If any other information is need please let me know,or e-mail me at kenshaney@hotmail.com . thanks again.