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- Path: rover.ucs.ualberta.ca!beast!data
- From: data@beast.math.ualberta.ca (Daryle A. Tilroe)
- Newsgroups: comp.dcom.modems
- Subject: Sportster Connection Problems
- Date: 11 Mar 96 21:28:17 GMT
- Organization: University of Alberta, Edmonton, Canada
- Message-ID: <data.826579697@beast>
- NNTP-Posting-Host: beast.math.ualberta.ca
- X-Newsreader: NN version 6.5.0 #7 (NOV)
-
- I am getting to the end of my rope as far as USR is concerned. I
- have a new USR Sportster V34+ External and it has the annoying
- tendency of resetting itself if it cannot negotiate at least 28.8
- in the first few seconds.
-
- First let me assure you that I am not a newbie with modems and
- have had great success with PPI's in the modem pool. Don't ask me
- what possessed me to try a USR.
-
- What seems to be happening is that the USR will either reset itself
- or connect with no compression if it cannot use the highest symbol
- rate (3456 or something). This seems to be due to Fallback always being
- disabled (I have never done an ati6 and seen it enabled). Thus on any
- thing but the cleanest lines (and this varies from call to call) the
- modem with reset itself after a few seconds or connect with out compression.
- The only way around this is to manually disable the highest or higher
- symbol rates depending on the quality of line (ie ats33=32). I find
- this intolerable and the USR is going back if I cannot fix this
- within a few days.
-
- I can understand a modem not getting fast connections on poor lines but
- it should negoitate the best rate it can without my intervention.
-
- [ASIDE ON]
-
- [I will actually tell you what possessed me to try a new USR. I foolishly
- bought a Sportster 28.8 for home about a year ago. It has never worked
- well. I had to do the same manual symbol rate trick or it would just
- negoitiate forever or connect at 21600 sometimes. My line is not that
- noisy and a PPi will do 28.8 V34 and using VFC I can connect at 28.8. Thus
- I use VFC since USR will not admit anything is flaky wrt thier V34
- negotiation fallback. I have been meaning to ship it in for a new one
- and wanted to check if the $20 shipping was throwing good money after
- bad. It seems that it probably is as USR does not seem to have inproved.]
-
- [ASIDE OFF]
-
- If anyone has any ideas or if I have missed something obvious please let
- me know. Perhaps a later ROM revision will help (is there a 2.0)?
- Perhaps this is a lemon and I just need to get another?
- Perhaps I need a large hammer?
-
- Anyhow for your enjoyment here are the particulars for the USR:
- (These default settings will connect on a clean line only.
- On most ats33=32 or even lower symbol rates ar required.)
-
- ati4
- USRobotics Sportster 33600 Fax Settings...
-
- B0 E1 F1 M1 Q0 V1 X4 Y0
- BAUD=38400 PARITY=N WORDLEN=8
- DIAL=HUNT ON HOOK
-
- &A3 &B1 &C1 &D2 &G0 &H1 &I0 &K1 &M4 &N0
- &P0 &R2 &S0 &T5 &U0 &Y1
-
- S00=000 S01=000 S02=043 S03=013 S04=010 S05=008 S06=002
- S07=060 S08=002 S09=006 S10=0050 S13=000
- S15=000 S16=000 S18=000 S19=000 S21=010 S22=017 S23=019
- S25=005 S27=000 S28=008 S29=020 S30=000 S31=128 S32=002
- S33=000 S34=000 S36=014 S38=000
-
- LAST DIALED #:
-
- OK
- ati6
- USRobotics Sportster 33600 Fax Link Diagnostics...
-
- Chars sent 0 Chars Received 0
- Chars lost 0
- Octets sent 0 Octets Received 0
- Blocks sent 0 Blocks Received 0
- Blocks resent 0
-
- Retrains Requested 1 Retrains Granted 0
- Line Reversals 0 Blers 0
- Link Timeouts 0 Link Naks 0
-
- Data Compression NONE
- Equalization Long
- Fallback Disabled
- Protocol NONE
- Speed 28800/28800
- Last Call 00:00:00
-
- Disconnect Reason is DTR dropped
-
- OK
- ati7
- Configuration Profile...
-
- Product type US/Canada External
- Options V32bis,V.FC,V.34+
- Fax Options Class 1/Class 2.0
- Clock Freq 92.0Mhz
- Eprom 256k
- Ram 64k
-
- EPROM date 10/18/95
- DSP date 10/18/95
-
- EPROM rev 1.1
- DSP rev 1.1
-
- OK
- --
- Daryle A. Tilroe ------------- Thin Film & System Admin ----- data@amc.ab.ca
- Alberta Microelectronic Centre ------------------------ http://www.amc.ab.ca
- #318, 11315-87 Avenue |----------------------------------------------------|
- Edmonton, AB /\/\ | Work: (403) 492-5570 x227 | Home: (403) 439-4743 |
-