Hi,
I have SBC dsl and for about 6 months off and on have been  having problems with what seems to be surging my connection when working is faster than promised at times , but is like a it goes from 0 to full speed coast back down then after about 2 min back to full speed again
I have talked to SBC tech did a rip and rebuild and was told I cold do 4mps if it was available . I have changed the nic card wires everything but the modem.
I did the test here this morning and got 
::::::::::.. Upload Stats ..::::::::::
Connection is:: 296 Kbps about 0.3 Mbps (tested with 2992 kB)
Upload Speed is:: 36 kB/s
Tested From:: http://testmy.net (server1)
Test Time:: Wed Feb 22 06:37:30 PST 2006
Bottom Line:: 5X faster than 56K 1MB upload in 28.44 sec
Diagnosis: Looks Great : 10.86 % faster than the average for host (pacbell.net)
Validation Link:: http://testmy.net/stats/id-E1Q9Y0MHD
and
Download Speed is:: 72 kB/s
Tested From:: http://testmy.net (server1)
Test Time:: Wed Feb 22 06:50:16 PST 2006
Bottom Line:: 11X faster than 56K 1MB download in 14.22 sec
Diagnosis: May need help : running at only 32.85 % of your hosts average (pacbell.net)
Validation Link:: http://testmy.net/stats/id-FNSXBZTLV
Any Ideas?????

I am about 1/4 mile or less away from the office , no alarm system and it did work at one time.just started right after  I renewed with them.