on 01/08/02 11:16, Bob Howells at [EMAIL PROTECTED] wrote: > Hi Neil, > > Will look up info about codes when I have time. That would be a great help Bob, thanks. > > meanwhile the fact that you are having the same problems on 2 computers > SUGGESTS that the problem should be external. > Well you are using 2 different modems aren't you ! ? Two different modems, two different computers, three different OS versions and three physically different locations/phone lines/exchanges... the only common factors seem to be the apple modem scripts and the Telstra Bigpond dial-up account (and associated servers etc.)??!! > > I have to pose these questions :- > > 1. Do you have call waiting turned off. ? ( Dial #43# on your phone ) Yes call waiting is off. > > 2. Do you have any phones across your line while you are using the computer. > ( Memory phones can drag power from the line and cause disconnects ) Whilst I normally have a phone & fax across the line, I have disconnected all these items during past troubleshooting but the problem remained. > > 3. Do you have a mobile phone ( switched on ) or TV set sitting near your > computer? ( Known to sometimes cause problems ) No mobile phone. TV set is around 2m away at present but I have experienced the problem at other locations with no TV is sight. Also the alternative 'Apple int56K (v.34 Only)' script does seem to give me a reliable (if slow) connection with my powerbook. > > 4. Does your phone line ever have clicks or noise ( buzz, hum ) on line ? Not that I can say I've noticed. > The way I see it: The variety of computer/modem/phone line variations would tend to rule out modem/phone line problems? The fact that one modem script seems to be giving me a reliable connection seems to suggest that the other modem scripts are disconnecting me due to some conditon/signal that these scripts take as a reason to disconnect? Or is it possible that the disconnections are initiated at the telstra server due to some signal that is or isn't being sent that is script dependant? To someone who understands the intricacies of modems/scripts etc the differences between the reliable and unreliable scripts (ie 'Apple int56K (v.34 Only)' vs 'Apple Internal 56K Modem (v.34)') together with the info from the connection log should help to home in on the problem? [I realise this assumes that the problem is the same from computer to computer & location to location which may be a wrong assumption?]
On a different tack, since the 'Apple int56K (v.34 Only)' does seem to give me a reliable (if slow) connection on the powerbook do you have any idea why the script will not work with my 800Hz G4 iMac (either under OS10.12 or OS9.2.2) Many thanks for your help with this. Neil > > Neil Houghton wrote: > >> Just to update on progress so far. Many thanks to all who responded and >> particularly to Bob for the scripts. Murphy was working well and as I told >> Bob: >>> When I last posted on this I had just been disconnected more than ten times >>> in >>> a few hours and all that week had been getting frequent disconnections. >>> >>> After you sent me the scripts I dropped some in the scripts folder ready to >>> try them the next time I had problems. So, would you believe it, since then >>> everything has been behaving amazingly well (even though I haven't yet tried >>> any of them!) in a week I've had only two or three disconnections!! (It >>> reminds me of when I had to faultfind the electronics on unmanned submarines >>> - >>> the intermittent faults were always a problem - rarely appeared when you had >>> the meter out!) >> Anyway this didn't last too long and so the next time I hit problems, I >> started trying scripts. I first tied the 'Apple Internal 56K RB' since it >> sounded to address several potential causes - unfortunately I had two >> disconnections in fairly quick order. I next tried 'Apple Int56K (V34 Only)' >> and sofar this seems to have solved the problem - I just have to put up with >> a max speed of 33600 - frustrating but not half as frustrating as the >> disconnects!! >> The above paragraph applies to my Ti G4 400Hz Powerbook. >> >> I am still slowly getting up to speed with OSX on my new 800Hz G4 iMac. To >> see if the problem was solved just by the change to v34, I selected the >> original 'Apple Internal 56K Modem (v34)' script. The connection seemed >> better but I still had problems. I discovered the 'Connection Log' window in >> Internet Connect and found that there seemed to be two separate scenarios- >> >> 'Terminating on signal 15.' >> >> 'No response to 3 echo-requests >> Serial link appears to be disconnected. >> Connection terminated.' >> >> Each of these scenarios seemed to be happening on a fairly frequent basis, >> so I then tried the 'Apple Int56K (V34 Only)' from the scripts Bob sent. >> Having placed this in the HD/Library/Modem scripts folder, I selected itin >> the network modem preferences, however attempting to connect failed with >> >> 'Terminating on signal 15. >> Connect Script failed >> Serial link disconnected.' >> >> I then tried re-booting into OS9.2 and again found that the original 'Apple >> Internal 56K Modem (v34)' script would connect (I didn't stay on long enough >> to see how long the connection lasted) but when I tried the 'Apple Int56K >> (V34 Only)' from the scripts Bob sent (placed in the >> OS9system/extensions/modem scripts folder), again the modem would not >> connect. >> >> So the situation seems to be: >> 1) the original 'Apple Internal 56K Modem scripts (both v.90 & v.34) seem to >> have difficulty maintaining a connection both on my powerbook and my iMac. >> 2) the 'Apple Int56K (V34 Only)' script which Bob sent seems to give a >> reliable (if slow) connection with my powerbook. >> 3) unfortunately, this script does not seem to be compatible with the modem >> in my iMac (either under OSX or OS 9.2) >> >> I would really appreciate if some modem guru (Bob?) could advise >> a) if the 'connection log' messages give any insight into what is the actual >> cause of the disconnection problems > >> b) any method of getting the fix to work on my iMac >> c) any way to get a reliable connection at higher speeds than 33600 or is >> this too big an ask (sometimes I have had good long connections at 48000so >> the lines would seem to be good for it - is it a congestion problem?) >> >> TIA >> >> Neil >> >> on 09/07/02 17:48, Bob Howells at [EMAIL PROTECTED] wrote: >> >>> NEIL, >>> >>> Attached you will find a copy of Ross's scripts for troublesome modems. >>> >>> I don't know whether this will help. Forgotten what OS and Mac you are >>> having >>> trouble with. >>> I have some other info also somewhere about disabling the >>> Low Carry disconnect function. >>> >>> I might need to explain that bit to you. Effectively what it means is >>> that your >>> modem >>> can sense if the Data Carrier signal goes low level, and then initiatesa >>> disconnect. >>> Sometimes we can turn that function off by altering the modem script. >>> >>> Also there is another function that can effect the modem. >>> >>> When you start up, your compter speaks to the modem to set it up readyto >>> connect and dial on the line. >>> After the connection is made, the computer only requires the modem to >>> onforward >>> the info >>> but the computer still needs to be able to initiate a disconnection >>> The disconnection command is a group of 3 plus signs in a row. >>> If i send that here it could initiate you to disconnect. There is a >>> special >>> guard circuit in the >>> modem that is supposed to stop it recognising >>> signals similar to the disconnect pluses. >>> which might occur in your text messages >>> >>> The suspicion is that your modem is not guarding as good as it should. >>> >>> Welll that's the theory anyway, >>> Meanwhile check this lot out and see how you make out. >>> >>> Have Fun >>> >>> Bob Howells >>> >>> Neil Houghton wrote: >>> >>>> I posted on this subject back in February, recap: >>>>> I have a problem that is erratic but seems to be increasing in frequency? >>>>> When on the net or collecting email I keep getting disconnected. >>> >>> -- The WA Macintosh User Group Mailing List -- >>> Archives - <http://www.wamug.org.au/mailinglist/archives.html> >>> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.html> >>> Unsubscribe - <mailto:[EMAIL PROTECTED]> >>> >>> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ >>> >>> >> >> -- >> Neil R. Houghton >> Albany, Western Australia >> Tel: +61 8 9841 6063 >> Fax: +61 8 9841 6137 >> Email: [EMAIL PROTECTED] >> >> -- The WA Macintosh User Group Mailing List -- >> Archives - <http://www.wamug.org.au/mailinglist/archives.html> >> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.html> >> Unsubscribe - <mailto:[EMAIL PROTECTED]> >> >> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.html> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.html> > Unsubscribe - <mailto:[EMAIL PROTECTED]> > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > -- Neil R. Houghton Albany, Western Australia Tel: +61 8 9841 6063 Fax: +61 8 9841 6137 Email: [EMAIL PROTECTED]
