Sitecom WL-308 Connection problems

So my router worked fine with no issues when i first purchased the product, now a few months into using it i decide to pay Warhammer online, it kept dropping me out randomly every 2-20 mins so i assumed it was becuase i didnt open that appripoate ports. So went to go into the route options and decided while i was there to update the firmware as i was in version 1 and they were up to version 4. After the update it went back to factory settings no problems there though other than just the wireless network being unsecured now it connected to the internet fine so a assumed it found the correct MAC address automatically. after about 10 mins it cut out. I could still conect to the router just would say that limitied connection, and no internet. So put the correct MAC address in and can connect at all now. every time i set it back to factory settings it works fine for a limited time. My ISP in Virgin. I also notice in the Log's tab that it keeps blocking packets comming from a random IP address going to my ISP, could this have anything to do with it??

 

Does it say why it's blocking those packets?

 

no, no information other than its blocking the packets. im thinking maybe its the firewall blocking them at a guess?? But i would only be guess and unsure how the stop the firewall from blocking them anyway....