I have a ebay black SB6141 that I connected about 2 months ago. It worked but I got terrible T3 timeouts. Switched back to TW's ubee Docsis 2 modem and then called and called TW to get my line fixed. During this time I loaned the SB6141 to a friend and I'm not sure if he tried it out.
TW fixed my line and now I tried plugging the SB6141 back in. ON Boot I get On green led On green download On green upload Flashing green globe - about 15 seconds green globe goes off Flashing download and flashing upload That is how it stays.
I have called TW and they took my mac address, and said they could not communicate with the modem and that the modem was broken.
Is it really broken, or is it something not allowing it onto the network?
If the downstream and upstream lights go solid for a bit before going back to blinking at the same time then it is locking successfully, but it's not liking something in the configuration it's getting.
Pull up the web interface »192.168.100.1 and go to the 'Configuration' tab and click the 'Reset All Defaults' button. That button does not reboot it, so after waiting a few seconds either power cycle it or click the 'Restart Cable Modem' button.
If doing that doesn't fix it, please post the info from the 'Status' 'Signal' and 'Log' tabs.