Thank you for your helping me dn0
I just buy new modem Motorola SB5120, my place all the store did not carrier SB5100 any more
now I will give you the test you help me to compair see the modem was bad or some thing else
This si the test from Cox ISP status
Downstream
Frequency 579000000 Hz
Signal to Noise Ratio 36 dB
QAM 256
Network Access Control Object ON
Power Level -4 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
Upstream Value
Channel ID 4
Frequency 22800000 Hz
Ranging Service ID 2246
Symbol Rate 2.560 Msym/s
Power Level 43 dBmV
----------------------------------------------------
Now this is a test from testmy.net
Your connection is: 1496 Kbps (about 1.5 Mbps)
You downloaded at: 183 kB/s
Your TRuSPEED: ^info^ 1601 Kbps :: 196 kB/s (7% overhead factored)
Bottom Line: You are running: 27 times faster than 56K and can download 1 megabyte in 5.6 second(s)
Diagnosis: May need help : running at only 45.82 % of your hosts average (cox.net)
:::.. Download Stats ..:::
Connection is:: 1496 Kbps about 1.5 Mbps (tested with 748 kB)
Download Speed is:: 183 kB/s
Tested From:: https://testmy.net/ (server1)
Test Time:: Fri Jul 15 21:19:38 MST 2005
Bottom Line:: 27X faster than 56K 1MB download in 5.6 sec
Diagnosis: May need help : running at only 45.82 % of your hosts average (cox.net)
Validation Link:: https://testmy.net/stats/id-SOK1PNL3I
If you say the new one is better I will keep it and call ISP cancel tech service
Thank agian