Modem drops carrirer - why?
Al Grant
This old modem keeps hanging up every 30 min or so. Here are the logs,
anyone able to tell me why?
Cheers
- Al
at
OK
ati3
SoftK56V_B2.1_V2.13.06F
OK
at#ug
<VERSION=07>
<CALL SETUP RESULT=DataAnswer>
<V.8 CM octet string="">
<V.8 JM octet string="C16513948">
<RX SIG POWER DB=17, TX SIG POWER DB=15, S/N RATIO DB=47>
<NORMALIZED MEAN SQUARED ERROR=200>
<NEAR ECHO LOSS=56>
<FAR ECHO LOSS=56>
<FAR ECHO DELAY=0>
<ROUND TRIP DELAY=0>
<TX MOD=Unknown, TX SYMBOL RATE=3429, TX CARRIER FREQ=65535>
<RX MOD=Unknown, RX SYMBOL RATE=0, RX CARRIER FREQ=65535>
<TX FIRST DATA RATE=24000, RX FIRST DATA RATE=40000>
<CARRIER LOSS=0, RATE RENEG=4>
<RETRAINS REQ=6, RETRAINS DET=0>
<TX FINAL RATE=24000, RX FINAL RATE=0>
<PROTOCOL NEGOTIATION=LAPM>
<COMPRESSION NEGOTIATION=V42BIS>
<TX CHARS SENT FROM DTE=E2C0>
<RX CHARS SENT TO DTE=318DA>
<TERMINATION CAUSE=DTR drop>
<V8BIS FLEX VERSION=0, V8BIS DSP VERSION=0>
<RATE RENEG REQ=0, RATE RENEG DET=4>
<HIGH PASS FILTER ENABLED=0>
<ROBBED BIT PATTERN=0>
<DIGITAL PAD DETECTED=0, DIGITAL LOSS ESTIMATE=0>
<Cnt1=0, Det1=0, Res1=0>
<EQM=0, TRAINING EQM SUM=0>
OK
MODEM PROPERTIES INFO
PORT INFORMATION
PORT: COM2
INTERRUPT: 0
ADDRESS: 2F8
UART: NS 16550AN
HIGHEST SPEED: 115K BAUD
CONEXTANT SOFT56K DATA,FAX,REMOTE TAM PCI MODEM (CHIPSET DEFAULT)
IDENTIFIER: PCI\RSSI1025
COMMAND RESPONSE
ATI1 255
ATI2 OK
ATI3 SOFTK56V_B2.1_V2.13.06F
ATI4 CONEXTANT SOFT56K DATA,FAX,REMOTE TAM PCI MODEM (CHIPSET
DEFAULT)
ATI5 180
ATI6 SOFTK56
ATI6 CMODEM VERSION 11
ATI6 RKSAMPLE VERSION 340
ATI7 255
AT+FCLA..0,1,8
Hooda Gest
"Al Grant" <ag...@ihug.co.nz> wrote in message
news:cac07315.03010...@posting.google.com...
> Hi All,
>
> This old modem keeps hanging up every 30 min or so. Here are the logs,
> anyone able to tell me why?
Sure, the answer (or part of it) is right here...
> <TERMINATION CAUSE=DTR drop>
That means you (or DUN actually) told the modem to disconnect. Idle activity
disconnects can do this. I have to wonder about this report though...
> <TX FINAL RATE=24000, RX FINAL RATE=0>
A final rate of "0" seems rather odd.
--
Hooda Gest
"In a New York minute, everything can change..."
Generic
your receive and transmit signal power is relatively quite low, although your S/N
ratio is fine.
Al Grant
Would the low Rx Tx Pwr combined with the fact that it was DTR drop
suggest maybe DUN hanging up because of a poor line? Why else would
DUN hang up? It certainly aint me doing it....?
BTW: Its AOL7 on this PC....
- Al
Al Grant
PS: The modem disconnected shortly after I posted my last message with:
<TX FINAL RATE=24000, RX FINAL RATE=33600>
<PROTOCOL NEGOTIATION=LAPM>
<COMPRESSION NEGOTIATION=V42BIS>
<TX CHARS SENT FROM DTE=B903>
<RX CHARS SENT TO DTE=166C6>
<TERMINATION CAUSE=Retrain failed>
...-Al
Rick
> Would the low Rx Tx Pwr combined with the fact that it was DTR drop
> suggest maybe DUN hanging up because of a poor line? Why else would
> DUN hang up? It certainly aint me doing it....?
DUN would know nothing about a poor line. The modem is being commanded
to disconnect, and that suggests a configuration problem with your system.
Rick
This is a different reason for the disconnect. In this case the modem
coud not continue communicating with the remote (a failed retrain
attempt) and disconnected.
You might try lowering the sonnect speed if this is a common occurrance.
Al Grant
Maybe you are right - after all the line S/N Ratio is 47 sometime 48db
which is ok.
I have id'd the modem from the chipset and are trying the generic
driver.
Interestingly the sound card was being detected as a sound card and
also a modem. This was causing a second modem to install. so I have
removed the sound card and are fiddling now.
-Al
Franc Zabkar
finger to keyboard and composed:
>
>"Al Grant" <ag...@ihug.co.nz> wrote in message
>news:cac07315.03010...@posting.google.com...
>> Hi All,
>>
>> This old modem keeps hanging up every 30 min or so. Here are the logs,
>> anyone able to tell me why?
>
>
>Sure, the answer (or part of it) is right here...
>
>> <TERMINATION CAUSE=DTR drop>
>
>
>That means you (or DUN actually) told the modem to disconnect. Idle activity
>disconnects can do this. I have to wonder about this report though...
>
>> <TX FINAL RATE=24000, RX FINAL RATE=0>
>
>A final rate of "0" seems rather odd.
I don't trust much of the AT#UG output unless it is captured whilst
the modem is online.
Here are some other useless data:
<TX MOD=Unknown, TX SYMBOL RATE=3429, TX CARRIER FREQ=65535>
<RX MOD=Unknown, RX SYMBOL RATE=0, RX CARRIER FREQ=65535>
-- Franc Zabkar
Please remove one 's' from my address when replying by email.