and that will tell you where your connection is dying.
For example this what the traceroute may return:
C:\Documents and Settings\AAA>tracert
www.wikipedia.org
Tracing route to
text.pmtpa.wikimedia.org [208.80.152.2]
over a maximum of 30 hops:
1 1 ms <1 ms <1 ms 192.168.2.1
2 15 ms 14 ms 14 ms 10.20.21.173
3 14 ms 15 ms 15 ms 202.7.173.169
4 15 ms 15 ms 14 ms bri-sot-wic-crt1-gi-2-0-0.tpgi.com.au [203.29.135.1]
5 15 ms 14 ms 14 ms bri-nxg-alf-crt1-POS-8-0.tpgi.com.au [202.7.171.253]
6 33 ms 32 ms 31 ms syd-sot-ken-crt1-TG-7-0-0.tpgi.com.au [202.7.171.125]
7 247 ms 248 ms 246 ms
xe-7-0-0.edge1.SanJose3.Level3.net [4.53.208.13]
8 251 ms 251 ms 252 ms
vlan69.csw1.SanJose1.Level3.net [4.68.18.62]
9 * 248 ms 248 ms
ae-62-62.ebr2.SanJose1.Level3.net [4.69.134.209]
10 265 ms 269 ms 270 ms
ae-2-2.ebr2.LosAngeles1.Level3.net [4.69.132.14]
11 293 ms 305 ms 292 ms
ae-3-3.ebr3.Dallas1.Level3.net [4.69.132.78]
12 298 ms 306 ms 293 ms
ae-91-98.ebr1.Dallas1.Level3.net [4.69.146.90]
13 317 ms 317 ms 317 ms
ae-1-12.bar2.Tampa1.Level3.net [4.69.137.117]
14 315 ms 314 ms 315 ms
ae-7-7.car2.Tampa1.Level3.net [4.69.133.41]
15 316 ms 315 ms 315 ms
ae-23-23.car3.Tampa1.Level3.net [4.69.133.62]
16 315 ms 315 ms 315 ms
e1-11-level3.co2.tpax.as30217.net [4.71.0.10]
17 325 ms 324 ms 326 ms
ge8-1.csw5-pmtpa.wikimedia.org [66.113.197.94]
18 323 ms 322 ms 322 ms
rr.pmtpa.wikimedia.org [208.80.152.2]
Trace complete.