Forums | USR | Interesting - Line Quality improves then...pffffft!! | Watch |
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PsychoSy Tl Posts: 2 USA | Posted - 10/22/2000 11:22:01 PM I've always had problems connecting at greater than 28.8 for years. For a while, I had to disable V.90 alltogether!! Recently, with the resurgence of an upper-class trailer home park and church being built around my country home, I thought that perhaps Ameritech improved some of their gear out here. I purchase the 3COM 56K Faxmodem Pro Voice USB which I run on a COM port instead of USB from a friend and then let it connect. It connects at 45,333! Whoo-hoo!! And hour later...*click* modem unable to retrain!! Since my ISP account was about to lapse and I wanted a change of pace, I ordered service from Earthlink and I'm using their v.90/x2 line to connect (my former ISP used V.90/KFlex which I figured had some anomlies that my 3Com modem didn't like). Ever since my switch to Earthlink, I get a consistant 42,666 connection rate with an occassional 44,000. Throughput is pretty decent as well for the most part but usually after an hour or 2, my connection will downshift to around 38,000 and sometimes down to an ugly 26,400. But I'm still complaining :P Why? In theory, I shouldn't be getting a V.90 connection and I desperately want to keep it my current lucky streak which I'm sure will puke out soon. Take a look at this log... ati6 U.S. Robotics 56K Voice Pro EXT Link Diagnostics... Chars sent 147273 Chars Received 854538 Retrains Requested 0 Retrains Granted 0 Data Compression V42BIS 2048/32 Disconnect Reason is DTR dropped OK U.S. Robotics 56K Voice Pro EXT Link Diagnostics...
150 22
Here's the next log...this is for a connection of over an hour that started at 42,666 and declined steadily bottoming out at 26,400... U.S. Robotics 56K Voice Pro EXT Link Diagnostics... Chars sent 665134 Chars Received 5421347 Retrains Requested 0 Retrains Granted 1 Data Compression V42BIS 2048/32 Disconnect Reason is DTR dropped OK U.S. Robotics 56K Voice Pro EXT Link Diagnostics...
OK
150 22 Now, today has been full of 38,000 connection rates and I swapped cables that run to the modem to the phone jack (my new cable is 25ft while the old one is --Sy--
"Take Not Thy Thunder From Us...Take Away Our Pride." --Iron Maiden-- |
n2775247 Tl Posts: 24 Australia | Posted - 10/25/2000 8:39:22 AM DTR drop out may mean its dropping out at your end. What speed is your port set at, try it at 115200.
The masses of men live a life of quiet desperation. Henry David Thoreau |
PsychoSy Tl Posts: 2 USA | Posted - 10/26/2000 12:47:21 AM My port rate's at 155200. I recently turned down my Rx buffer and the result has been better throughput and less retrains. In fact, I counted 2 retrains earlier that were visably noticable (I was on a Telnet BBS posting a message when my typing lagged for about 15 seconds and the other retrain during newsgroup surfing) and tested my throughput. The result was an estimated 44,000 on a 42,666 connection so apparently my USR modem actually will upshift (I've read somewhere that 56K modems rarely upshift). |
v.Richard Tl Posts: 6222 USA | Posted - 10/28/2000 9:42:30 AM Yes, the y11 #s would indicate that you do not have a 56k-compatible line; The i11 status line indicates your call goes on a 6db pad (my guess: Earthlink's access # is a 'virtual' POP that is actually forwarded to another location where the server modems are: in most cases a 6db pad will yield better 56k connects than a [more common for local calls] 3db pad. The i11 status also shows RBS link and old [bad for 56k] codedc - 1Y. Ask telco: are you on a SLC or DLC system? Is it integrated? How far are you from the telco CO? Aloha, |
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