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Date: Wed, 25 Sep 1996 20:56:13 -0700 (PDT)
From: Doug White <dwhite@gdi.uoregon.edu>
Reply-To: dwhite@resnet.uoregon.edu
To: rohit@cs.UMD.EDU
cc: questions@freebsd.org
Subject: Re: Strange 'tip' and 'ppp' behaviour over USR 28.8
In-Reply-To: <199609260051.UAA07806@darling.cs.UMD.EDU>
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On Wed, 25 Sep 1996 rohit@cs.UMD.EDU wrote:

> Some really strange problems have been confounding my connectivity
> to the local ISP. I describe the problem below : would some care to
> offer some insight!
> 
> I have a USR sportster 28.8K external FAX modem hooked up to COM2
> with Straight thru cable.
> 
> I have a PPP and a dialup account from the local ISP (Digex).
> 
> I am running FreeBSD 2.1.5.
> 
> When I dial in to the ISP using 'tip', the connection goes thru
> fine, but I am frequently interrupted by moderately long periods
> of silence where my keystrokes are not echoed onto the screen. 
> These keystrokes seem to be bufferred someplace (TCP??, remote modem??)
> as they spring back up after a while. I lose characters sometimes,
> but only very rarely.

1)  Have you tried other hosts?
2)  If the gap was shorter, I'd say you have problems with line noise and
the Sportster is just retraining a bunch.  But a whole minute is a bit
long for a retrain!

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major