CoD4 lags after 1 min playing online, :(

Hi guys .... this is my first time installing CoD4 ... Everything went fine during installation.

When ever I play online ( although i have a low ping below 200) the game start to freeze and lag after 1 min. When i play with my friends on LAN it runs smoothly without any problem.

PLEASE guys help ..... I missing the online

thanks in advance.

Btw, I'm running Call of duty 4 on the new Macbook.

2.4 core 2 duo, 4gb ram, gforce 9400M

I did the traceroute thing i got this
traceroute to 87.106.210.231 (87.106.210.231), 64 hops max, 40 byte packets
1 * * *
2 94.128.2.20 (94.128.2.20) 84.636 ms 99.311 ms 100.105 ms
3 94.128.2.90 (94.128.2.90) 100.125 ms 99.309 ms 99.963 ms
4 94.128.3.17 (94.128.3.17) 99.961 ms 99.428 ms 99.923 ms
5 94.128.3.1 (94.128.3.1) 99.814 ms 99.562 ms 99.996 ms
6 62.215.0.41 (62.215.0.41) 99.815 ms 99.420 ms 99.892 ms
7 195.229.29.133 (195.229.29.133) 300.025 ms 329.909 ms 379.356 ms
8 195.229.31.101 (195.229.31.101) 279.887 ms 299.700 ms 299.801 ms
9 195.229.1.165 (195.229.1.165) 309.978 ms 309.012 ms 320.082 ms
10 195.229.1.106 (195.229.1.106) 449.908 ms 489.365 ms 439.857 ms
11 linx.bb-c.the.lon.gb.oneandone.net (195.66.224.98) 249.682 ms 229.181 ms 239.861 ms
12 te-1-3.bb-c.bap.rhr.de.oneandone.net (212.227.120.49) 249.924 ms 249.376 ms 240.185 ms
13 ae-8.gw-distp-a.bad.oneandone.net (212.227.121.220) 234.937 ms 569.251 ms 240.050 ms
14 ae-1.gw-prtr-r161-2a.bad.oneandone.net (195.20.247.59) 429.539 ms 249.704 ms 309.827 ms
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
31 * * *
32 * * *
33 * * *
34 * * *
35 * * *
36 * * *
37 * * *
38 * * *
39 * * *
40 * * *
41 * * *
^C


Does that mean i have bad hops ?

If i do how can i resolve this matter ?