Bill_MI
Bill In Michigan
Premium,MVM
join:2001-01-03
Royal Oak, MI
 ·Comcast
| reply to Sebastian
Re: Firmware rasied noise margins on 643
Sebastian, I just posted my 20 cents on the ZyXEL P645 here: »Cant Log Into 645 Modem
ISP customization seems to be a moving target so I tried to be as generic as possible. Even the same ISP seems to have used various versions of config. |
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Sebastian
Premium
join:2000-12-22
New Haven, CT
| reply to gdm
is there a way to upgrade the zyxel 645M firmware? does it even have one? if so how?
I tried using telnet with IP address 192.168.1.1 but i can't connect, do you think they changed it, speakeasy/covad?
honestly, i am not sure what model it is... i say 645M because that is what it says on my DSL order.. but the modem itself just says "Prestige 645"
--
will code for free.
[text was edited by author 2003-05-17 02:53:29] |
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Gibigiane
@sun.com | reply to gdm
Just a note that I also upgraded my 643's firmware with
the version on the Covad website and my noise margins
definitely showed an improvment (10db to ~15db). |
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gdm
Premium,MVM
join:2001-06-15
Mchenry, IL
clubs: | reply to Bill_MI
Re: Just an Update
Trust me I wish I was able to also or if they had a auto sensing/switch program that could set in fastpath x amount and safe mode y amount. |
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Bill_MI
Bill In Michigan
Premium,MVM
join:2001-01-03
Royal Oak, MI | reply to gdm
It's possible Friday night on the 11th I'd would have been dead in FastPath. I'm not sure yet. I wish I could control the mode myself.  |
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gdm
Premium,MVM
join:2001-06-15
Mchenry, IL
clubs: | reply to Bill_MI
Bill are going to try Fastpath or not even bother? |
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Bill_MI
Bill In Michigan
Premium,MVM
join:2001-01-03
Royal Oak, MI
·Comcast
| reply to Bill_MI
I'm glad of one thing - the noise margin downstream does seem to now follow past problems I have which may show up in FastPath. I've always said nights, weekends and holidays were the bad times.
The noise margin downstream is now following this closely - it really didn't correlate on the old firmware. The "dips" are Friday, minor on Saturday and EASTER SUNDAY. Gee, I remember being without service all Memorial Day weekend in 1998 - that's when I first noticed holidays are bad. High residential phone use times is my key.
[text was edited by author 2003-04-20 22:09:22] |
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Bill_MI
Bill In Michigan
Premium,MVM
join:2001-01-03
Royal Oak, MI
·Comcast
| reply to gdm
Re: Oh well... no FastPath for me (sigh)
Oh, I forgot to say 784/784 SDSL was *solid* on the same dry pair Ameritech ADSL was bad on.
And my standing offer to any phone company insider. A steak dinner for the guy/gal that finds me a clean ADSL line! (it's audibly perfect already). |
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gdm
Premium,MVM
join:2001-06-15
Mchenry, IL
clubs: | reply to Bill_MI
That's right I forgot about the OLD phone wiring in your area. Never mind I am done responding about your drops now:) |
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Bill_MI
Bill In Michigan
Premium,MVM
join:2001-01-03
Royal Oak, MI
·Comcast
| reply to gdm
If you saw the 1-1/2 miles of buried 60-year-old phone lines near me you would. No phone tech EVER wants to go down in that hole and they never do - they just swap out pairs until things settle (sigh). My theory has always been cross-talk due to old, damp, wire bundles. Anything to my house has to go through this mess.
EDIT: Then there's creative phone servicing. Notice I said "supposedly" 3 pairs. Well, "supposedly", I had bridge-taps removed, pairs swapped, etc. etc. several times back in 1998 trying to fix me. Funny... no interruption looking like such ever occurred and I ping-test every 15 seconds. They must be MAGIC! (off the sarcasm for now ).
[text was edited by author 2003-04-14 20:42:41] |
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gdm
Premium,MVM
join:2001-06-15
Mchenry, IL
clubs: | reply to Bill_MI
Bill,
Ok I got you now. I still can't believe high phone usage would cause this issue. I don't know enough to say yes or no but just find it hard to believe. |
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Bill_MI
Bill In Michigan
Premium,MVM
join:2001-01-03
Royal Oak, MI
·Comcast
| reply to gdm
No, it's not every Friday night. Loss of sync tends to occur around high residential phone usage times historically here. This includes week nights, weekends and holidays. Not always, just most-the-time.
This is across (supposedly) at least 3 different dry pairs and 2 line-shared pairs over 5 years or so. It's also on both Ameritech and (now) Covad DSLAMs.
This is the first time I've seen data indicating what looks like a similar pattern. Notice the small dip Saturday before noon - that's typical, too. Sunday can be bad but not this week.
No, I didn't loose sync *every* Saturday (EDIT: Friday!) night. It was just one of the times I typically would. Get the idea?
Something at the CO can certainly affect only the higher ADSL frequencies and, thus, downstream to me. However, upstream at lower frequencies ("Upstream noise Margin") stays locked at 16db. You'd think it would affect reception there.
Too bad I can't replay Friday night in FastPath. I hate data speculation.
[text was edited by author 2003-04-14 20:27:34] |
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gdm
Premium,MVM
join:2001-06-15
Mchenry, IL
clubs:
 ·AT&T U-Verse
 ·AT&T CallVantage
·Comcast Digital Vo..
·Comcast
| reply to Bill_MI
That friday night dip still seems very strange to me. I thought no matter the usage a DSL line shouldn't spike/dive like that. Bill I know you said they have checked the line and everything else.
Do you know if anything is going on at the CO at this time? It's every friday night, correct? |
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Bill_MI
Bill In Michigan
Premium,MVM
join:2001-01-03
Royal Oak, MI
·Comcast
| reply to gdm
Here's a week before and a week after the firmware change. It won't be that quick to FastPath - I'd like to watch this over another weekly cycle (sorry, I'm an engineer ).
[text was edited by author 2003-04-14 18:23:36] |
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gdm
Premium,MVM
join:2001-06-15
Mchenry, IL
clubs: | reply to Bill_MI
There you go Bill!!!!! Let us know what happens and all the stats. Nothing like a little presssure.:) |
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Bill_MI
Bill In Michigan
Premium,MVM
join:2001-01-03
Royal Oak, MI | reply to Hall
OK, you guys win. I'll call sometime soon and give it a try. I've done enough creative justification. |
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gdm
Premium,MVM
join:2001-06-15
Mchenry, IL
clubs:
·AT&T U-Verse
·AT&T CallVantage
·Comcast Digital Vo..
·Comcast
| reply to Hall
said by Hall  :
Are you brave enough to try non-Safe-Mode yet ??
I think Bill should try getting out of safe mode and try it!!!!!! :):) |
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Hall
Premium,MVM
join:2000-04-28
Dayton, OH | reply to Bill_MI
Are you brave enough to try non-Safe-Mode yet ?? |
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Bill_MI
Bill In Michigan
Premium,MVM
join:2001-01-03
Royal Oak, MI
·Comcast
| reply to gdm
The firmware seems to measure noise margin differently and/or possibly retrain quicker or smarter. ADSL is an array of frequencies that can be selected or discarded based on signal conditions. Since it's quite dynamic it's hard to say what's going on, really. All I do is come up with a zillion questions only insiders can answer.
For example, that 1AM recovery - was it the noise going away or did the modem recognize the noise problem and re-train? When I get some time I want to try to get more insight. |
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gdm
Premium,MVM
join:2001-06-15
Mchenry, IL
clubs:
| reply to Bill_MI
Bill,
That sucks but the firmware still helped though besides the primetime, correct?
[text was edited by author 2003-04-12 16:55:47] |
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