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New Visitor
Zumo
Posts: 3
Registered: ‎02-29-2012

New Motorola SURFboard SB6121 Slow Upload(no upload)

[ Edited ]

I have a new Motorola SURFboard SB6121 that for the first day worked great. Now my upload speed is slow or not working at all. I dont know how much this info below will help solve the problem but tech support has not been able to help me at all. At the moment they are "watching my connection speeds."

 

Modem signal status

 

 

 Upstream Signal to Noise Ratio Unknown great tech support 29.5

Upstream Receive Power 0.0 dBmV

 

Downstream Bonding Channel Value

Cable Expert
i-am-nerdburg
Posts: 11,133
Registered: ‎06-27-2009

Re: New Motorola SURFboard SB6121 Slow Upload(no upload)

There does not seem to be any obvious problems on your end. I'm not sure there is much advice we can offer you other than "call for a tech".

Official Employee
ComcastSteve
Posts: 384
Registered: ‎09-13-2006

Re: New Motorola SURFboard SB6121 Slow Upload(no upload)

[ Edited ]

Edited

Steve Teow


New Visitor
Zumo
Posts: 3
Registered: ‎02-29-2012

Re: New Motorola SURFboard SB6121 Slow Upload(no upload)

I have no PMs so I have no idea what you are talking about.

Official Employee
ComcastSteve
Posts: 384
Registered: ‎09-13-2006

Re: New Motorola SURFboard SB6121 Slow Upload(no upload)

Sorry, wrong thread

Steve Teow


New Visitor
Zumo
Posts: 3
Registered: ‎02-29-2012

Re: New Motorola SURFboard SB6121 Slow Upload(no upload)

So you can't help me? This seems to be a known issue with this modem from what I can find online.

Official Employee
ComcastSteve
Posts: 384
Registered: ‎09-13-2006

Re: New Motorola SURFboard SB6121 Slow Upload(no upload)

Yes I can but I need some modem info. Send me an email with the modem MAC.

Steve Teow


New Visitor
jugo
Posts: 2
Registered: ‎05-17-2012

Re: New Motorola SURFboard SB6121 Slow Upload(no upload)

I have the same issue.  Just connected the SB6121 today.  Download speed doubled from 12 to 24 Mbps, but upload decreased from 3.5 Mb down to .75.  I have sent an email to Steve with the MAC address

New Visitor
jugo
Posts: 2
Registered: ‎05-17-2012

Re: New Motorola SURFboard SB6121 Slow Upload(no upload)

Didn't get a reply from Steve, but 2 days after my post, my upload is back to 3+ Mb/sec.  YAY!