Topic '[MO] Modem Resets too often (SB5101U)' in forum 'Mediacom' - dslreports.com http://www.dslreports.com/forum/MO-Modem-Resets-too-often-SB5101U-27888590 en Fri, 24 May 2013 20:29:42 EDT Fri, 24 May 2013 20:29:42 EDT Re: [MO] Modem Resets too often (SB5101U) http://www.dslreports.com/forum/Re-MO-Modem-Resets-too-often-SB5101U-27890068 said by MediacomChad:

I will be happy to look into the connection issues you are having. Can you send me a message with your account or phone number?

Chad, exact same issue we are having here once again......Mediacom tech better get on this....you have a system issue]]> http://www.dslreports.com/forum/Re-MO-Modem-Resets-too-often-SB5101U-27890068 Mon, 07 Jan 2013 22:14:39 EDT Re: [MO] Modem Resets too often (SB5101U) http://www.dslreports.com/forum/Re-MO-Modem-Resets-too-often-SB5101U-27888971 http://www.dslreports.com/forum/Re-MO-Modem-Resets-too-often-SB5101U-27888971 Mon, 07 Jan 2013 16:00:47 EDT [MO] Modem Resets too often (SB5101U) http://www.dslreports.com/forum/MO-Modem-Resets-too-often-SB5101U-27888590
My Mom also has the same modem which I borrowed for a couple days when she didn't need it, and it seemed to work better for a second, but then had the same issue once or twice before I had to give it back. My mom doesn't use the internet enough for me to know if this happens at her place too.

I called Mediacom, and they said it was probably the modem because they didn't see anything on their end (I tried my mom's modem after I called them and the guy came out). They said because I owned my modem, that they couldn't update any firmware (sounds bs to me from reading a couple other posts) so they had someone come out.

I didn't have access to the utility closet at the time (live in an apt), so instead of turning down the signal, he put in a splitter. The downstream power level was too high (I think 9 dBmV where 7 should be the max) The splitter took it down to 3, but looking at it now, I see .9 dBmV. Upstream didn't change much (at 53.7 right now). This once again seemed to help a little, but now the modem is back to it's old antics.

Ok, now for code stuff. These are the logs from the modem during the reset:

2013-01-07 11:33:02 6-Notice I401.0 TLV-11 - unrecognized OID
2013-01-07 11:33:01 3-Critical D003.0 DHCP FAILED - Requested Info not supported.
2013-01-07 11:32:50 3-Critical R002.0 No Ranging Response received - T3 time-out (US 2)
2013-01-07 11:32:46 4-Error C216.0 DCC rejected parameter invalid for context
2013-01-07 11:32:44 6-Notice I401.0 TLV-11 - unrecognized OID
1970-01-01 00:00:29 3-Critical D003.0 DHCP FAILED - Requested Info not supported.
1970-01-01 00:00:07 6-Notice M571.1 Ethernet link up - ready to pass packets
2013-01-07 11:32:04 6-Notice M573.0 Modem Is Shutting Down and Rebooting...
2013-01-07 11:32:04 3-Critical R004.0 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance o
2013-01-07 11:31:32 3-Critical R005.0 Started Unicast Maintenance Ranging - No Response received - T3 time-out
2013-01-07 11:31:21 4-Error C401.0 DCC-ACK not received
2013-01-07 11:31:20 3-Critical R005.0 Started Unicast Maintenance Ranging - No Response received - T3 time-out
2013-01-07 11:31:20 4-Error C401.0 DCC-ACK not received
2013-01-07 11:31:18 3-Critical R005.0 Started Unicast Maintenance Ranging - No Response received - T3 time-out



I read some places that this might be a DOCSIS 3.0 compatibility issue (my modem is 2.0).

Any help is welcome. I know this is long, I just appreciate when I'm diagnosing issues, that every detail is there in case there is the important something someone else overlooked. I also apologize if this is a repeated thread from authorityact, but my problem seemed slightly different, as my issue happens under lighter load of my internet (I have 20mbps speed, so there shouldn't be an issue of maxing bandwidth with games/ghangout).

Thanks
]]> http://www.dslreports.com/forum/MO-Modem-Resets-too-often-SB5101U-27888590 Mon, 07 Jan 2013 14:01:25 EDT