General discussion related to Cable Modems, DSL, Wireless, Fiber, Mobile Networks, Wireless ISPs, Satellite, or any other type of high-speed Internet connection, general issues and questions here. Review and discuss ISPs as well (AT&T / SBC, BellSouth, Bright House, CableOne, Charter, Comcast, Covad, Cox, Cablevision / Optimum Online, TMobile, Verizon FIOS, Shaw, Telus, Starlink, etc.)
Heeeeeeeeeeeelppppp, ok here goes, I have an emachines e-monster 700k running and amd athlon processor, My OS is windows xp and my problem is I recently bought a Motorola Sufboard SB5120 for some reason out of the blue the
pc activity light goes off and I lose my connection it's almost like the computer just drops the modem, when I try to see the status of my network connection it opens for a millasecond then closes I know it's not a virus or spyware, what I want to know if anyone can tell me, if this a modem problem or if is an OS or computer problem ?(all drivers installed correctly) Device Manager says this device is working properly, I'm lost can't figure it out. Also when that happends it goes into Automatic Private address
What are your signal levels? Go to Signal levels and check your signal levels, copy and paste them here so I can take
a look at them. It could be bad signal levels, NIC, coaxial cables, splitters, bad CAT5 cable, etc. causing your connection to drop. If your signal levels, coaxial cables, splitters are bad, you're going to need a tech come out to your residence. You can buy a NIC and CAT5 cable for $17 if you don't have any spare NICs and CAT5 cables laying around.
Computer specs:
Dell Dimension 2350 with a 1.7Ghz Intel Celeron Proccesor, Windows XP Home Edition, 80 Gig hard drive, 768Mb of DDRAM PC2100, CDRW and cdrom. Cox.net at 4Mbps down and 512Kbps up.
Downstream Value
Frequency 435000000 Hz
Signal to Noise Ratio 38 dB
QAM 64
Network Access Control Object ON
Power Level 2 dBmV
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
Upstream Value
Channel ID 19
Frequency 26000000 Hz
Ranging Service ID 519
Symbol Rate 2.560 Msym/s
Power Level 42 dBmV
Your signal levels looks very good. It sounds like your modem is going bad if it's disconnecting like that. Swap your modem if it
is a rental from your ISP, or you might have to go buy a new one if it was purchased from Walmart, Best Buy, etc.
Computer specs:
Dell Dimension 2350 with a 1.7Ghz Intel Celeron Proccesor, Windows XP Home Edition, 80 Gig hard drive, 768Mb of DDRAM PC2100, CDRW and cdrom. Cox.net at 4Mbps down and 512Kbps up.
Here is a shot of my modem which is the same thing:
Frequency 555000000 Hz
Signal to Noise Ratio 33 dB
QAM 256
Network Access Control Object ON
Power Level 0 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
Upstream Value
Channel ID 3
Frequency 33000000 Hz
Ranging Service ID 44
Symbol Rate 3.200 Msym/s
Power Level 29 dBmV
I'd say you have a power issue and just curious if you've had your ISP set your connection to your MAC id # on the modem.. Could also be the amp on the pole near your place needs a slight tweeking.. call tech support and have them test the modem from there end.
i did a few small steps before pluging my SB5100I motorola cable modem.
1) Organize all powerlines and Power Supply Connectors far away from the Coaxial Cable. if you have to cross them, ensure that they only touch at one point. (not the entire cable). (do the same with the Ethernet Cable).
2) i've bought a LINE NOISE SUPRESSOR (for 220AC), from a local store, this is connected to my patch cord where i get all the power lines going to monitos and other stuff.
3) if you share your Cable connection, you can ask your local cable provider to add another copper gnd bar attached to the existing system.
don try to install them separated from each other , it won't work. Another thing you must do.. is to buy noise supressors or cable insulators from a local store, This one are filters designed to eliminate ground loops in Coaxial Cable installations in your house.
The Tv's circuits (most of them) have a floating neutral config. that means all the residual current goes to the cable.. and then your Cable modem. I've experimented this with my old VHF/UHF antenna.. that was connected to my receiver , the PC audio out was connected to the receiver.. and believe me , it ****ed my connection everytime. There are some several DIY web pages on electronics where you can make your own Ground Loop Insulator. I recomend you to buy a 1:1 insulation transformer that has enought frecuency response to let the cable signals pass freely undistorted.
