| [HSI] So I had a Motorola SB6121 provisioned (slow) My Moxi finally croaked, and I promised myself that when that day came, I would just ditch CATV. So I went to the local Charter office and the lady handed me a new cable modem and gave me the new standard internet deal.
I disconnected my trusty old Linksys and installed the Motorola and called in to have it provisioned. Speedtest was my first stop. ~2-3 Mbps down and about the same up -- it did get a bit better later, maybe 5-6 (different browser).
I spent a long time on the line with 2 different people, doing the typical ruckus (plugging directly into laptop, powering off cable modem. unscrewing cable -- rinse repeat).
She wants to send someone out, but taking time away from work isn't going to work easily for me. Does anyone see anything obvious with my levels? Does it need to "settle in" or anything? Perhaps wait for a firmware update? I saw the initial logs, and they were dated the year 1970 for some time, and eventually updated correctly.
Thanks for any help... I know systems and networking well, but the hardware getting me *to* the network isn't my bag. 
Thanks
km |
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3 edits | Were you getting the correct speeds with the other modem and if so, why would they need to send anyone out when switching to their modem? Should not make a lick of difference.
My bad, I misread what modem you had provisioned. I was interpeting it differrently.
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The Firefox alternative.
»www.mozilla.org/projects/seamonkey/ |
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 norton
join:2005-08-03
Holland, MI | reply to kennewickman
i went out and picked up a new hi speed router and speed went up huge. with new modem you speed blocker might be your responsibliity (router, old wi fi on laptop). |
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| reply to kennewickman
Hi -- thanks for the replies. I was getting good speeds (around 15) with my old Linksys, even just prior to installing the new modem.
Although it's never caused substantial slowdowns in the past, I still plugged a laptop directly in to the modem with an ethernet cable - bypassing my linux nat box, wireless router, etc.
This morning I was pulling down ~17Mbps (over a mixed wireless B/G access point). So something is changing. I didn't have time to do more in depth testing (direct to modem, wired regular network, 5GHz N), as I had to leave for work. I'll keep an eye on it before dragging that new modem back to Charter for a replacement or having them schedule someone to look at my wiring.
I was just hoping someone could see anything from my screencaps that looked like a red-flag to them. As far as I know, keeping the dBmV between -10 / +10 is ideal, so that looks ok, I think(?). The numbers reported by my cable modem aren't things I am familiar with, so I was hoping someone could help me out to decide if it's the modem or my wiring. I never had any issues with my old modem, but... it was old and maybe not too picky.
Thanks again! |
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 msmisfit
join:2004-09-13
Lawrenceville, GA
kudos:2 | reply to kennewickman
Your numbers look similar to my 6121's so I can't really help, but what firmware do you have? Mine is Firmware Name: SB_KOMODO-1.0.6.6-SCM00-NOSH and has worked fine.
I will say I still have that 1970 date error in the modem log, which hasn't corrected for me. They told me not to worry about it, someone hadn't changed a date in their equipment... it wasn't my modem. 
Hope you find out what the problem is. I had to replace my reliable Linksys router to get the higher speeds after getting this modem. |
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Cisco D3 Modem |
Pulling this with a CISCO D3 modem. |
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| reply to msmisfit
msmisfit -- I'll have to check on the firmware version; it's possible I got a push last night explaining the faster speeds this morning (but still slower than expected).
compuguybna -- you trying to make me feel bad with your 60Mbps DLd speeds? Anyway a friend just got her new Cable modem about a month before I did, and hers was a Cisco. |
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| said by kennewickman:msmisfit -- I'll have to check on the firmware version; it's possible I got a push last night explaining the faster speeds this morning (but still slower than expected).
compuguybna -- you trying to make me feel bad with your 60Mbps DLd speeds? Anyway a friend just got her new Cable modem about a month before I did, and hers was a Cisco.
The brand of modem depends on the market you are in. In this area Motorola is the choice of Charter, while in other areas it is Cisco.
I remember someone else mentioned that this may be due in fact to equipment at the headend of each areas system. The headend stuff here is also Motorola. |
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| reply to kennewickman
Didn't know. thought they were moving towards supporting "the same kind of modem". But you're right, it might be area. everyone here has cisco modems. |
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| Actually I think the move is to limit the number of different modems to the bare minimum allowing for technical reasons. Like headend compatibility. |
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 BF69Premium
join:2004-07-28
Camden, TN | reply to kennewickman
said by kennewickman:This morning I was pulling down ~17Mbps (over a mixed wireless B/G access point). So something is changing. I didn't have time to do more in depth testing (direct to modem, wired regular network, 5GHz N), as I had to leave for work. I'll keep an eye on it before dragging that new modem back to Charter for a replacement or having them schedule someone to look at my wiring. How would test wireless N over a router that only get wireless B/G?
Anyways wireless B would be an issue as wireless B Maxes out at 11 Mbps at best. Even wireless G maxes out at 54 Mbps but that theoretical at best.
Las year I wasn't even getting 20 Mbps consistently on an old Linksys wireless GS router. Got a newer Netgear Wireless N router and got the speeds I was supposed to. |
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BF69Premium
join:2004-07-28
Camden, TN | reply to kennewickman
SB6121 |
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| reply to BF69
I have an access point that is for older devices, and one running N; the bulk of my wireless network is N @ 5GHz. As it turned out this morning, I didn't really have time to dig too deeply, and the laptop that can only pick up B/G was on, and I got the ~17Mbps.
Tonight when things calm down I'll dig in a little more and report back for those who may be interested.
Sorry -- I should have clarified that I have 2 access points, a wired network and a DMZ (for my SprintPCS femto-cell) all on different VLANs.
The puzzling issue was last night: a laptop pulling DHCP straight from the modem with an ethernet cable was getting like 2Mbps (after resetting all network settings to default and cleaning house). Before I put it all away for the night, I plugged things back in how I usually do and woke up with a lot more bandwidth. I'll do a firmware version check; that may have done something.
Thanks for the post! |
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| All signs are pointing to over-congestion at peak hours. Came home at about 5:30PM to 2-3Mbps and I checked off and on until about 11PM where it was at about 12Mbps/ This morning it was about 18.
There is another thread about my area happening, and I am fitting the profile. I'll just assume my modem is fine, and my equipment and wiring hasn't magically failed at the exact time I switched modems.
:-P
Thanks all for the replies. |
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