Newsgroup: it.comp.hardware.modem
Titolo: Help I have tried everything I know - 56k behaving like 33.6

I recently got a replacement for a  modem (under warranty) damaged during a
storm.  The replacement is a Cirrus Logic Chipset mfg by Jaton.  It is a
Communicator V.90.  This modem has baffled me time and again.  I think I am
a very experienced, knowledgeble Geek yet I can not figure this thing out.
The modem connects at 31,200 bps nearly everytime.  Yet it is a 56k v90
modem.  I have been warned that it will require flashing to a newer firmware
but  I have done this and installed new drivers and countless other things
none of which have worked.
I have the modem connected on Com 2 via jumpers as the tech support person
at the puter store says it works better this way.  Doesn't seem to work
correctly in PNP or via jumpers.  Also when I try to install the modem on
Com 1 it just locks up my computer whenever I try to open the port.  Also I
don't know if this is normal considering I have the modem configured to use
com 2  but now com 2 will not install via PNP,  I have to "detect new
hardware" to find it.
Jaton's official tech support was the most useless phone call I have ever
made.
I am enclosing in this post information regarding my system configuration
and modem/ports configuration.
Any help would be GREATLY  appreciated.
Mark Faine
<<< System information follows>>
----------------------------------------------------------------------
----------------------------------------------------------------------------
-------------------
I can be contacted at 
mfa...@bellsouth.net
,or Icq 8523171 thanks.
<<< Ports Information >>>
----------------------------------------------------------------------------
-------------------
<< Communications Port (COM1) >>
  < General Port Information >
    Model ID:                             COM1
    Type:                                 Communications Port
    COM Port UART:                        NS 16550AN
  < Port Driver >
    Model ID:                             serial.vxd
    Version:                              4.10.00.2222
  < Port Properties >
    Packet Version:                       2.00
    Data Packet Size:                     64 bytes
    Provider Sub-Type:                    RS232 Port
    Current/Max Receive Buffer:           4096 / Any bytes
    Current/Max Transmit Buffer:          0 / Any bytes
  < Provider Capabilities >
    DTR/DSR Supported:                    Yes
    RTS/CTS Supported:                    Yes
    RLSD Supported:                       Yes
    Parity Check Supported:               Yes
    XON/XOFF Flow Control Supported:      Yes
    Settable XON/XOFF Supported:          Yes
    Total (elapsed) Time-Outs Supported:  Yes
    Interval Time-Outs Supported:         Yes
    Special Character Support:            No
    Special 16-bit Mode Supported:        No
  < Default Port Configuration >
    Baud Rate:                            9600 baud
    Data Bits:                            8-bit
    Stop Bit(s):                          1
    Parity:                               Disabled
    Transmission Mode:                    Binary
    CTS Output Flow Control:              No
    DSR Output Flow Control:              No
    DSR Input Flow Control:               No
    DTR Flow Control Type:                Enabled
    RTS Flow Control Type:                Toggle
    XON/OFF Input Flow Control:           No
    XON/OFF Output Flow Control:          No
    XOFF Continues Transmission:          No
    Error Replacement Enabled:            No
    Null Stripping Enabled:               No
    Abort On Errors:                      No
<< Printer Port (LPT1) >>
  < General Port Information >
    Model ID:                             LPT1
    Type:                                 Printer Port
    LPT Port Type:                        Normal
  < Port Driver >
    Model ID:                             lpt.vxd
    Version:                              4.10.00.1998
  < Printer(s) Connected To Port >
    Model:                                Acrobat PDFWriter
<< Communications Port (COM2) >>
  < General Port Information >
    Model ID:                             COM2
    Type:                                 Communications Port
  < Port Driver >
    Model ID:                             serial.vxd
    Version:                              4.10.00.2222
  < Port Properties >
    Packet Version:                       2.00
    Data Packet Size:                     64 bytes
    Provider Sub-Type:                    RS232 Port
    Current/Max Receive Buffer:           4096 / Any bytes
    Current/Max Transmit Buffer:          0 / Any bytes
  < Provider Capabilities >
    DTR/DSR Supported:                    Yes
    RTS/CTS Supported:                    Yes
    RLSD Supported:                       Yes
    Parity Check Supported:               Yes
    XON/XOFF Flow Control Supported:      Yes
    Settable XON/XOFF Supported:          Yes
    Total (elapsed) Time-Outs Supported:  Yes
    Interval Time-Outs Supported:         Yes
    Special Character Support:            No
    Special 16-bit Mode Supported:        No
  < Modem Status >
    CTS On:                               Yes
    DSR On:                               Yes
    Ring Indicator On:                    No
    RLSD On:                              No
  < Default Port Configuration >
    Baud Rate:                            9600 baud
    Data Bits:                            8-bit
    Stop Bit(s):                          1
    Parity:                               Disabled
    Transmission Mode:                    Binary
    CTS Output Flow Control:              No
    DSR Output Flow Control:              No
    DSR Input Flow Control:               No
    DTR Flow Control Type:                Enabled
    RTS Flow Control Type:                Toggle
    XON/OFF Input Flow Control:           No
    XON/OFF Output Flow Control:          No
    XOFF Continues Transmission:          No
    Error Replacement Enabled:            No
    Null Stripping Enabled:               No
    Abort On Errors:                      No
<<< Comms Devices Information >>>
----------------------------------------------------------------------------
-------------------
<< Cirrus 56K bps Modem Internal (CL-MD5650) Modem >>
  < Communication Device Setup >
    Manufacturer:                         Cirrus Logic Generic
    Model:                                Cirrus 56K bps Modem Internal
(CL-MD5650) Modem
<<< Hardware IRQ Settings >>>
----------------------------------------------------------------------------
-------------------
    0:          System timer
    1:          Standard 101/102-Key or Microsoft Natural Keyboard
    2:          Programmable interrupt controller
    3:          Communications Port (COM2)
    4:          Communications Port (COM1)
    5:          Creative AWE64 16-bit Audio (SB16 compatible)
    6:          Standard Floppy Disk Controller
    7:          Printer Port (LPT1)
    8:          System CMOS/real time clock
    9:          Intel 82371AB/EB PCI to USB Universal Host Controller
    9:          IRQ Holder for PCI Steering
    11:         3D Blaster Banshee PCI/AGP
    11:         BusLogic FlashPoint PCI SCSI Host Adapter
    11:         IRQ Holder for PCI Steering
    12:         PS/2 Compatible Mouse Port
    13:         Numeric data processor
    14:         Intel 82371AB/EB PCI Bus Master IDE Controller
    14:         Primary IDE controller (dual fifo)
    15:         Intel 82371AB/EB PCI Bus Master IDE Controller
    15:         Secondary IDE controller (dual fifo)
<<< DMA Settings >>>
----------------------------------------------------------------------------
-------------------
    1:          Creative AWE64 16-bit Audio (SB16 compatible)
    2:          Standard Floppy Disk Controller
    4:          Direct memory access controller
    5:          Creative AWE64 16-bit Audio (SB16 compatible)
----------------------------------------------------------------------------
-------------------
*****  End of Report - Report created successfully  *****

Goto your system properties / device manager /ports / com 2 /port settings/
raise it to 115k, flow control *hardware*. I know it should be at 115k, what
I don't know is if that modem has the hardware to support "hardware flow
control"
Hope this helps

[This followup was posted to comp.modems and a copy was sent to the cited 
author.]
Have you checked to see that you're connecting via v.90?  
After you disconnect, open a terminal window for the comm port your 
modem's connected to (not the modem itself) and send an ati11 command.  
The first line (you said 3com, right?) will give you "modulation".  If 
this is v.34, then bingo.
I'd been going around and around with my ISP for 5 months, "it's your 
hardware" "it's your setup" "it's the phone lines" "Oh wait, you know all 
that time we've been telling you we had x2?  Well in *your* town, we only 
have v.34.  Sorry."
Needless to say I now have a new ISP, good connect speeds, and am 
requesting a partial refund.
-- 
There's no need to e-mail me a copy of a follow-up; but if you do,
please identify it as such.

If your telephone company's equipment doesn't
support 56k, or if you are too far from your ISP
then run the test outlined at:
http://www.3com.com/56k/need4_56k/linetest.html
to see if you phone line supports 56K connections
(yes 53K is the FCC limit).
 Also, if you have a 33.6 or 28.8 modem and it
connects below ~24k, then that's also a good sign
that your telephone line doesn't suppout 56k.
 If it passes, then either try a different ISP
and/or buy a good modem (about $35-60), I
recommend USR/3COM's. 
  Alternatively, install DSL or a cablemodem, 
if available.
                                    RayO