View Full Version : Scientific Atlanta 2100 With VM
I got VM 20mb installed and also got a free Scientific Atlanta 2100 Cable modem. (is this modem any good!?)
My question is this (if you would be so kind) is there a direct route into admin panel (like with ADSL routers) you know an ip entry 192.168.1.1 ?
I don't seem to see one.
Also it comes up sometimes that Local Area Connection is disconnected and then connects again about a min later, I have checked all wires and everything is working ok with the pc, is this just the modem or is this common?
Thank you.
CIS
Hi CIS,
First off, welcome aboard !
You can reach the 2100 admin panel by navigating to http://192.168.100.1
As for the disconnections, I've not had that problem, it could be that your modem is dropping sync, once you've got to the admin pages check the logs.
HTH
Bri
Thank you for the reply Synner
The logs look like this, I take it this is not a good thing.
Thu Aug 30 14:31:38 2007 Critical (3) DHCP WARNING - Non-critical field invalid in response.
Thu Aug 30 14:31:31 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:31:21 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:31:02 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:30:28 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:30:11 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:28:59 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:28:42 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:28:28 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:28:09 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:27:41 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:27:17 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:26:50 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:26:27 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:26:05 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:25:45 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:25:16 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:24:53 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:24:40 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:24:14 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:23:01 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:22:44 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:22:24 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:21:59 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:21:25 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:21:06 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:29:58 2007 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC f...
Thu Aug 30 14:20:52 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:20:25 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:20:13 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Aug 30 14:19:49 2007 Critical (3) No Ranging Response received - T3 time-out
Thu Aug 30 14:19:40 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Hi,
Some of the items in your logs look normal, heres mine:
Time Not Established Critical (3) DHCP WARNING - Non-critical field invalid in response.
Tue Aug 28 17:02:52 2007 Critical (3) Resetting the cable modem due to docsDevResetNow
Time Not Established Critical (3) DHCP WARNING - Non-critical field invalid in response.
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) DHCP FAILED - Discover sent, no offer received
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) DHCP FAILED - Discover sent, no offer received
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC f...
Time Not Established Critical (3) DHCP FAILED - Discover sent, no offer received
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) DHCP WARNING - Non-critical field invalid in response.
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) DHCP WARNING - Non-critical field invalid in response.
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) Resetting the cable modem due to console command
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/Q...
Time Not Established Critical (3) Resetting the cable modem due to console command
Not sure about this though: Thu Aug 30 14:24:40 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Post your signal details, may give us more clues..
Bri
{FU}Fubar
30-08-2007, 17:07
my logs look alot like that too
Time Not Established Time Not Established
1
Critical(3)
68000300
DHCP WARNING - Non-critical field invalid in response.
Time Not Established Time Not Established
2
Critical(3)
82000200
No Ranging Response received - T3 time-out
Downstream Status Operational
Channel ID 7
Downstream Frequency 339000000 Hz
Modulation 256QAM
Bit Rate 20480000 bits/sec
Power Level -5.6 dBmV
Signal to Noise Ratio 40.7 dB
Upstream Status Operational
Channel ID 3
Upstream Frequency 37500000 Hz
Modulation 16QAM
Bit Rate 768000 bits/sec
Power Level 61.0 dBmV
The speeds thus far have been great.
Hi,
Lucky you ! My speeds are all over the place, not had anything over 15Mb/s yet... ah well...!
I'm a little concerned about your upstream power level, looks a little high to me, mines at 41dBmv.
Hopefully someone else will confirm/deny..
Bri
monkey2468
30-08-2007, 18:10
Downstream Status Operational
Channel ID 7
Downstream Frequency 339000000 Hz
Modulation 256QAM
Bit Rate 20480000 bits/sec
Power Level -5.6 dBmV
Signal to Noise Ratio 40.7 dB
Upstream Status Operational
Channel ID 3
Upstream Frequency 37500000 Hz
Modulation 16QAM
Bit Rate 768000 bits/sec
Power Level 61.0 dBmV
The speeds thus far have been great.
Its probably dropping its connection as the upstream power levels is V. high.
How do I go about lowering the upstream power level (mind you, the connection has not dropped in a few hours) and the level is now at - 59.5 dBmV
fatassmichael
30-08-2007, 20:19
you will need a tech out to alter power from the cab
It has not disconnected in a while now (hours) and I have been on it all day. So I think I will just leave it and maybe get tech out if I have any big problems, because the speeds are flying, my downloads today have not dropped below 2500.0 Kbytes/s (2.5MB/Sec) and I am pulling a 600mb file down in 5 mins.
Thanks for all the support. very nice of you all.
evilmonkey
31-08-2007, 10:49
It has not disconnected in a while now (hours) and I have been on it all day. So I think I will just leave it and maybe get tech out if I have any big problems, because the speeds are flying, my downloads today have not dropped below 2500.0 Kbytes/s (2.5MB/Sec) and I am pulling a 600mb file down in 5 mins.
Thanks for all the support. very nice of you all.
You still realy need to get that upstream power level attenuated. Should be below 58 and above 30 to function normally.
No choice now, as the internet connection died a death this morning, I put the pc on, did a speed test (20meg flying) went to load up a webpage and nothing, from that the cable light was flashing and then just went out. No upstream at all and the down rate was on -17, also no mac address, bla bla
So I called tech support and they are sending an engineer out tomorrow to take a look see, but from what I can make out, a lot of people are having a lot of problems.
evilmonkey
31-08-2007, 11:35
No choice now, as the internet connection died a death this morning, I put the pc on, did a speed test (20meg flying) went to load up a webpage and nothing, from that the cable light was flashing and then just went out. No upstream at all and the down rate was on -17, also no mac address, bla bla
So I called tech support and they are sending an engineer out tomorrow to take a look see, but from what I can make out, a lot of people are having a lot of problems.
If possible try to ensure the engineer doesnt just swap the modem or add an attenuator to the back of the modem. He will need to make his adjustments from the cabinet to make them perminent.
If possible try to ensure the engineer doesnt just swap the modem or add an attenuator to the back of the modem. He will need to make his adjustments from the cabinet to make them perminent.
Thanks for the good advice.
Just so I can get it right, what is the cabinet. is it the small white box on the inside of the room, where the cable enters the house?
So I can take a look on the day and see if he goes near it.
fatassmichael
31-08-2007, 13:26
The cab is outside, usually painted green.
The VM engineer has just left and he said it was down to a bad install, faulty wiring on the outside box. Seems to be sorted now.
Bit Rate 20480000 bits/sec
Power Level 9.9 dBmV
Signal to Noise Ratio 42.2 dB
Upstream Channel
Bit Rate 768000 bits/sec
Power Level 43.5 dBmV
Download Speed: 19526 kbps (2440.8 KB/sec ) Upload Speed: 735 kbps (91.9 KB/sec )
I must just say thank you to all who have helped with this matter, this forum does seem to be a little gem for info and help.
Thank you All
fatassmichael
01-09-2007, 15:23
Good to see you got it sorted :)
same thing again, few hours online, after the VM man was out, my net went offline and the reading is:
Up stream
Power Level 61.0 dBmV
If it’s going to continue like this, well then I am dropping VM. Stable internet is more important to me than 20meg.
---------- Post added at 19:50 ---------- Previous post was at 19:29 ----------
RE: this modem. (would this be right with the lights)
Power light on
Send/rec light on and off with data
Cable light on
and PC light on and off with data??
christopherw
01-09-2007, 21:26
Sounds right to me, that's how my SciAtl 2100 works when it's operating normally I think.
I have seen bar fights that are more stable than this cable connection. It's a shame because I liked the thought and look of 20meg, but if the VM man can do nothing (h is booked to come out again on wed) after next time, then I am going back to 8meg ADSL phone line net.
Sat Sep 01 21:16:35 2007 Critical (3) Started Unicast Maintenance Ranging - No Response received - ...
Time Not Established Critical (3) DHCP WARNING - Non-critical field invalid in response.
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Sat Sep 01 20:44:45 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Sat Sep 01 20:44:24 2007 Critical (3) No Ranging Response received - T3 time-out
Sat Sep 01 20:44:18 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Sat Sep 01 20:44:00 2007 Critical (3) No Ranging Response received - T3 time-out
Sat Sep 01 20:43:53 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Sat Sep 01 20:43:28 2007 Critical (3) No Ranging Response received - T3 time-out
Sat Sep 01 20:43:10 2007 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC f...
Sat Sep 01 20:43:12 2007 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/Q...
Sat Sep 01 20:42:52 2007 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Sat Sep 01 20:42:34 2007 Critical (3) No Ranging Response received - T3 time-out
Well it’s been sorted today (I thought I would let you all know, as so many have helped) It was a staple in the cable which ran from the inside box, to the modem.
The VM man who came out before checked for this and found nothing, but the VM man who came out today asked me if he wired the machine up and checked the cable, which he did not, this was one of the first things today’s VM man did and therefore found out the problem in 5 mins.
Power levels went back to normal as soon as he pulled the staple out.
Hi CIS,
Glad you got it sorted in the end... Enjoy !
Bri
A few questions guys?
1.Does anyone know for definate that they got Fibre Optical cable(as VM boast)?As i havent seen anyone from VM digging up the raod lately to install.
2.Does anyone use a wireless router between Scientific Atlanta 2100 and thier PC?.
3.Is anyone getting anywhere near VM 20mb connection?
moaningmags
27-08-2008, 10:45
:welcome: Sargy
1. The fibre optic goes as far as the green boxes in the street (I think)
2. I use a Netgear Wireless router between the SA2100 and my computers.
3. Yes, i consistently get 20 meg connection.
You'll find the speed varies on lots of different things though, are you having problems?
whydoIneedatech
27-08-2008, 11:29
A few questions guys?
1.Does anyone know for definate that they got Fibre Optical cable(as VM boast)?As i havent seen anyone from VM digging up the raod lately to install.
2.Does anyone use a wireless router between Scientific Atlanta 2100 and thier PC?.
3.Is anyone getting anywhere near VM 20mb connection?
:bump:thats a fair old bump of a thread
1. Fibre Runs to the Cabinet in the street.. then coax from there to ur house.
2. Yes i use a Linksys WRT54G Router it works fantastically
3. Yes.. im constantly getting capped to 5MB tho with the amount i download..
4. Not the first time i have saw a staple cause this.
5. Glad you got it sorted.. Happy Surfing :)
6. I need to pee
7. Think yourself lucky it wasnt a spider that was earthing the Coax Cable :D
Well it’s been sorted today (I thought I would let you all know, as so many have helped) It was a staple in the cable which ran from the inside box, to the modem.
The VM man who came out before checked for this and found nothing, but the VM man who came out today asked me if he wired the machine up and checked the cable, which he did not, this was one of the first things today’s VM man did and therefore found out the problem in 5 mins.
Power levels went back to normal as soon as he pulled the staple out.
I hate the way they use those staples, takes away any attention they would usually give to fitting the cable.. when I had mine installed he'd attached it to the skirting in such a way that it went over the radiator pipes (ie. in contact with) - as soon as he went I freed the cable and laid it away from the pipe - if you want something doing right, do it yourself I feel.
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