Cisco modems were originally based on K56flex code and this is still what they
default back to. USR's are based on the X2 56K technology. V.90 is supposed to
make these interoperable. It has been my experience that V.90 modems that have
a K56flex heritage do not play well with those that have an X2 heritage. Also,
Cisco's V.90 code for the AS5300 leaves something to be desired at this point.
They supposedly now have some new code that addresses various incompatibility
problems. This is not intended to dump on Cisco... all of the vendors have
incompatibility problems with V.90 that are yet to be worked out. Now, this may
have nothing to do with your problem, but I'm willing to bet it may. It's worth
exploring with your ISP. Also, many ISP's will disconnect idle circuits after a
time. One way many users bypass this is by having their mail client check mail
every 5-10 minutes to keep some activity on the circuit.
John J Boris Sr wrote:
> Hi folks,
> I get my Internet through a dial up line to my ISP. I use a Linux box to
> route using pppd and a US Robotics 56k modem. The connection dials to a
> Cisco AS5300. I have the serial port set to 115200 and reset the modem to
> some settings CISCO had on their web sites. The problem I am having is that
> the connection doesn't stay up for longer than a few hours. Sometimes it is
> only up for a few minutes. Before my ISP switched me to this setup was
> using a US Robotics 33.6 modem and I was dialing into a Proteon server.
> That connection used to stay up for days at a time and only drop when the
> Proteon would lose its route. That loss made my side think that the
> connection was down and reset it.
> Is there anyone on the list that uses this type of setup and can give me
> some pointers on how to check to see what is causing this. The place I am
> dialing into is only temporary because my ISP is doing renovations and they
> contracted with this other ISP to handle their traffic. Since this
> temporary move it has been a rough ride. The ISP that is running the AS5300
> I think is more of a novice than me. He is of no help and my regular ISP's
> hands are tied until I get back on their server.
> Thanks in advance. Pointers to How-tos or RTFM will be greatly appreciate.
>
> John J. Boris, Sr. Boris Computer Services/ONLine Services
> email:[EMAIL PROTECTED]
> bbs: The Bleeding Edge 609-858-9221
--
Albert Earnhardt
FTC Corporate Engineering
Box 588 Kingstree, SC 29556
843-382-1366 [EMAIL PROTECTED]
