Firefox - Transferring data, Looking up, Connecting (DNS problem?)

[Mdv2]

I've been using a D-Link 655 router for a while now and until recently, it had never let me down. However, I am now having problems loading pretty much every single website.

When clicking on a bookmark, I get to see the following message in the lower right corner: loading website X, looking up X, Connecting to website X, Transferring data...

I've tried the DNS servers of my ISP as well Google's, but no success. What could be the culprit?

 

[Mdv2]

I just checked the router log and it is as follows:

[INFO] Sun Aug 14 20:30:34 2011 Blocked incoming TCP connection request from 74.73.252.57:58241 to 82.176.32.250:58169
[INFO] Sun Aug 14 20:30:22 2011 Blocked incoming TCP packet from 24.178.74.143:55504 to 82.176.32.250:65141 as RST received but there is no active connection
[INFO] Sun Aug 14 20:30:13 2011 Blocked incoming TCP packet from 196.219.86.132:13617 to 82.176.32.250:51413 as RST received but there is no active connection
[INFO] Sun Aug 14 20:30:13 2011 Blocked incoming TCP packet from 67.197.176.78:64350 to 82.176.32.250:52719 as RST received but there is no active connection
[INFO] Sun Aug 14 20:30:10 2011 Blocked incoming TCP packet from 76.226.176.120:26291 to 82.176.32.250:53276 as RST:ACK received but there is no active connection
[INFO] Sun Aug 14 20:30:00 2011 Blocked outgoing ICMP packet (ICMP type 3) from 192.168.0.197 to 8.8.4.4
[INFO] Sun Aug 14 20:29:50 2011 Blocked incoming ICMP error message (ICMP type 3) from 74.73.252.57 to 82.176.32.250 as there is no TCP connection active between 82.176.32.250:57477 and 192.168.1.111:48056
[INFO] Sun Aug 14 20:29:46 2011 Blocked incoming TCP packet from 204.83.50.17:4356 to 82.176.32.250:52719 as RST:ACK received but there is no active connection
[INFO] Sun Aug 14 20:29:42 2011 Blocked incoming TCP packet from 76.174.6.201:57672 to 82.176.32.250:52719 as RST received but there is no active connection

 

[Mdv2]

Anyone?