Router loses internet connectivity

[coolVariable]

For some reason my router every once in a while (maybe every 1-2 days) seems to lose internet connectivity.
When I log in, it will say connected but I cannot access anything on the internet.
The only way to resolve the issue is to reboot the router/power cycle it.

A dump from the router log shows the below.

Sun Dec 13 00:34:56 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:35:56 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:35:58 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:36:20 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:36:22 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:36:38 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:36:40 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:36:43 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:36:43 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:36:56 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:36:58 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:36:59 2009 1 Blocked by DoS protection 10.251.128.1
] 1 Blocked by DoS protection 68.54.46.253
] 1 Blocked by DoS protection 68.54.46.253
Sun Dec 13 00:37:12 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:37:14 2009 1 Blocked by DoS protection 10.251.128.1
] 1 Blocked by DoS protection 68.54.46.253
Sun Dec 13 00:37:28 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:37:30 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:37:53 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:38:01 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:39:03 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:39:28 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:39:28 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:40:04 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:40:06 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:40:22 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:40:44 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:40:44 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:41:08 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:41:11 2009 1 Blocked by DoS protection 10.251.128.1
Sun Dec 13 00:41:25 2009 1 Blocked by DoS protection 10.251.128.1

 

[onza]

Provide us with router make/model?
Firmware version?

 

[coolVariable]

It's a Belkin F5D7230-4 v2000.
Firmware is the newest firmware for that router.

 

[coolVariable]

Up?