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MIXX
Tl Posts:
10

USA
Posted - 3/12/2001 1:20:52 PM  Show Profile  Email Poster  Edit Message
Problems with usr 56k performance pci modem. sometimes
there is a loud screech/garbled noise and I cannot
connect. I have tires x3 and no volume and new drivers
and no relief. the sometimes it connects awesome! 49,333 kps. I am confused and I need help please.
thanks in advance.
v.Richard
Tl Posts:
6222

USA
Posted - 3/17/2001 10:09:38 AM  Show Profile  Email Poster  Edit Message  v.Richards Homepage
Are you saying that sometimes you do not get a 'normal' handshake?
www.808news.com/56k/trouble3.htm

If so, you may be able to correct with commas, speed limit or 56k-protocol disable
www.808news.com/56k/comma.htm
www.808news.com/56k/x2-linklimit.htm
www.808news.com/56k/trouble2.htm

Aloha,
Richard

MIXX
Tl Posts:
10

USA
Posted - 3/17/2001 5:27:17 PM  Show Profile  Email Poster  Edit Message
THE minute my modem comes on it starts this noise not static. It tries to dial in the background and the hangs up. Other times it connects just fine??????49,333 for example. I used a regular phone
to check static in the line<> no noise. But when my dial up initiates the call BAM the rumble noise??
what gives?
MIXX
Tl Posts:
10

USA
Posted - 3/17/2001 5:33:28 PM  Show Profile  Email Poster  Edit Message
By the way Richard I do GET the handshake when there is no noise. When the noise is there no connect!
Volor
Tl Posts:
78

USA
Posted - 3/18/2001 10:09:13 AM  Show Profile  Email Poster  Edit Message
I experience this problem as well. I haven't discovered any method of fixing the problem, so I'm considering calling USR tomorrow and seeing if I there's any way to get the Modem fixed.

What is aggrivating is that the problem occurs only at night. The line is completely silent 24/7, but only during the day can I use my internet connection. I've tried everything imaginable regarding my machine and telephone line, but that damn noise is still there when the coyotes howl.

v.Richard
Tl Posts:
6222

USA
Posted - 3/18/2001 10:43:48 AM  Show Profile  Email Poster  Edit Message  v.Richards Homepage
Determine whether the noise can be heard on the phone line when the modem picks up:
Use a phone not plugged into the modem & pick up; listen for modem pickup & whether the noise can be heard over phone.

I'd also suggest disconnecting modem from phone line, going into Hyperterminal and giving modem ATH1 (off-hook) command - see if noise can be heard.

Shot in the dark: newer USR modems use solid-state on/off hook control - it's possible this is defective/intermittent, or that the phone co.-supplied voltage/current is dropping; see if removing [all] other devices on line has effect.
www.808news.com/56k/demarc.htm

Aloha,
Richard

lgeralds
Tl Posts:
2

Posted - 3/20/2001 10:38:03 PM  Show Profile  Email Poster  Edit Message
I have 2 usr 5686 exts sitting here with very similiar problems. This happens on every dial attempt.

There is an older 56k sportser sitting in the machine and it dials out okay.

There is no audible noise on the line.

The grabling happens when ath or atd... is sent and the modem is attached to the phone line.

I cannot audibly detect a dial tone through the noise. I assume that it's not picking up. One experiment involved taking a handset off hook and having the modem blind dial.

v.Richard
Tl Posts:
6222

USA
Posted - 3/28/2001 8:35:36 AM  Show Profile  Email Poster  Edit Message  v.Richards Homepage
I would suspect the on/off-hook circuitry of the modem (DAA) is bad.
Newer USR modems use solid-state DAA that is not nearly as reliable as old electro-mechanical method.

Aloha,
Richard

astanovoy
Tl Posts:
21

Russia
Posted - 4/1/2001 7:26:20 AM  Show Profile  Email Poster  Edit Message  astanovoys Homepage
You need grounding for your PC. This will solve your problems with noise.
v.Richard
Tl Posts:
6222

USA
Posted - 4/8/2001 10:51:49 AM  Show Profile  Email Poster  Edit Message  v.Richards Homepage
Astanoy -
It would seem to me that in the US grounding would not normally be an issue because all standard AC house wiring has ground which is connected to computer via power cable, and in turn to computer's chasis, etc.

Aloha,
Richard

Peril
Tl Posts:
12

Posted - 4/10/2001 2:42:59 PM  Show Profile  Email Poster  Edit Message
You know, I almost posted about this very same issue a couple weeks back. I decided not to post about it because I figured people would just say "bad phone line" or "defective modem" -- stuff I have already eliminated. In fact, I was nearly convinced it was a bad UART on my MoBO or something until I read this post!

I normally run a Lucent LT modem, but I recently picked up a nice USRobotics External 56K Sportster 005686-03, Model 0701. Well, it worked great for a couple connections. Then, without making any changes to my system, the darn thing started making the noisy, crackling, squealing sound when trying to pick up the line to dial out. Man! My LT is still working great on the same line and connecting a phone indicated NO NOISE. I figure, bad modem, right? So, I take it back and exchange it. I then take out the replacement (another 5658-03) and it does the same damn thing!

So, I figure, OK, it has got to be my system. I change phone line to wall jack. No dice. I change phone LINES (I have 2). No dice. I make sure the USR has no IRQ conflicts. Fine. Finally I start wondering if it is my UART on the motherboard that is going to the modem. Well, I put off trying to diagnose that for a few days out of frustration and go back to the LT. That was last week. When I tried the USR THIS week, it has been fine, just humming along (I am on it now).

Perhaps someone was on the right track along with Richard -- maybe a slight drop in household current may cause the solid-state pickup switch (that used to be a relay, according to Richard) is rather fussy about quality of current?

I'd be interested in hearing more about this problem (and solutions) if anybody else has this difficult to resolve issue!

MIXX
Tl Posts:
10

USA
Posted - 4/10/2001 8:31:15 PM  Show Profile  Email Poster  Edit Message
I also tried the 56k external 565803 thinking that the
internal pci was picky but nope<> couple of connections later
the crackling noise!!!!!!!!!!I said f*** it. ordered DSL and now am currently waiting for the service. In the meantime I am using the 5610a internal pci with no problems in about a week. Maybe richard is right about the solid state stuff. It is so sporadic that its like
???????????????????? what the hell. But when it connects right wow! So hopefully someone or USR can
solve this problems huh!
Peril
Tl Posts:
12

Posted - 4/11/2001 5:26:48 AM  Show Profile  Email Poster  Edit Message
I send an e-mail to USR about this. I'll post the reply if it has any meaningful information within.

My USR is under warrenty, so they got to help me, eventually. I never dealt with them before -- I hope their tech support and customer relations team treat people seriously.

Peril
Tl Posts:
12

Posted - 4/14/2001 8:47:25 AM  Show Profile  Email Poster  Edit Message
Here is the USR response:

Thank you for choosing U.S.Robotics. At U.S.Robotics, customer satisfaction is of the utmost
importance to us.

What you have described in your email isn''t a known issue that I know of. How long is the phone
line between the modem and the wall jack? And is it a straight connection or is the phone line
coiled?
If the phone line is coiled it will cause the problems you stated in your email.

Please check the following:

<snipped typical/general stuff to check>

I wrote them back again, asking if they can check with the person/dept responsible for the off-hook/on-hook circuitry.

BTW, my USR started having the problem again last night after a wekk of running great -- so I am back on the old LT :/

MIXX
Tl Posts:
10

USA
Posted - 4/14/2001 3:03:00 PM  Show Profile  Email Poster  Edit Message
Seems to be only at night when the crackling noise happens<> So I think the voltage,on/off hook thingy
might be the problem. By the way i've seen tons of these modems returned at Compusa>>>>>>go figure. Oh well its working now:)
Peril
Tl Posts:
12

Posted - 4/16/2001 2:56:55 PM  Show Profile  Email Poster  Edit Message
Check out the 2nd response I got back from USR after -carefully- explaining the problem again, and asking if the off-hook/on-hook circuit could be responsible for this intermittent problem:

"Thank you for choosing U.S.Robotics. At U.S.Robotics, customer satisfaction is of the utmost
importance to us.

Sorry but the V.92 is not available for your modem yet.
Our engineers plan to have updates available for almost all of our flash upgradable modems by
July, 2001. Please note that most major Internet Service Providers will not have v.92 switches
until the third quarter of this year. These switches are necessary for many of the v.92
protocol''s features.

About the time the ISPs get onboard the v.92 may be available for the MACs.

I would like to thank you for the opportunity to assist you. Should you require further
assistance with your
U.S.Robotics, please feel free to send another message. Your comments and suggestions are
welcome. We love to hear from our customers!

Again, thank you for choosing U.S.Robotics.

This is serious put-off.
I bought USR on the advice of several friends that said "USR makes the best modems" and the fact that my ISP uses USR. Getting a response like the above, having nothing at ALL to do with my situation really burns me up. After I took the time to write them twice and provide detailed information and answered the questions they put to me in the first note.

I never ONCE said anything about V.92. Not once!!

And, just to add insult to injury, my modem IS V.92 ready (not that it matters at all with the Static/Sqeal problem I'm dealing with), so he is even wrong in his irrelevant post.

Does anyone have a contact at USR, a customer relations / interface manager...?

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