firewall blocking tons of incoming

I am on a university LAN network for internet, using zone alarm 5

I have it on high security and it is blocking literally 5 things per second

Most of it is on ports 67, 137 and 138 which are dhcp and netbios, from different IP addresses every time, all along the UDP protocol

This isnt necessarily bad by itself, but when I play certain games like counterstrike/battlefield1942, I get ping spikes from like 20 up to 600 every few seconds, regardless of if my firewall is turned on or off, and I am not sure if this is related

I was wondering if the constant barrage of netbios packets could have any effect on my gameplay, and would a hardware firewall help out at all, or is there another way to help?

 

mebbe not an answer to your problem, but,....
keep a firewall on when playing games...trojan/virus attacks can occur while playing...depends on the server tone server i was at i was alerted -by norton's-to barrage of attacks coming at me -4 in an hour once; . If anything keep just set a rule allowing that site to be allowable by the firewall[if zone alarm has such a feature]