Level 2: Rookie

Cable Internet keeps running slow

Does anyone have any experience with tesltra cable, Modem: CG3100D-2?


Since i have had cable installed about 6 months ago, every one or two days the download speeds drop from 100mbs down to only 1 or 2mbs. The only way to fix it is to restart the modem and usually it reconnects and runs at the correct speed.


However for the last week or so it will drop down in speed and no matter how many times i reset the modem it keeps running at 1 or less mbs. Is there anything to be done other than having a technician called out (although i am hoping i can organise that)?


Here is my latest speed test, i find it odd that the ping is still low and the upload is fine at 2mbs, but the download is pathetic.

<a href=""><img src="" /></a>


here is the connection info from the router.


Startup Procedure
Acquire Downstream Channel470000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
Configuration FileOK 

Downstream Bonded Channels
Lock StatusModulationChannel IDSymbol rateFrequencyPowerSNRDOCSIS/EuroDOCSIS locked
LockedQAM642296952000 sym/sec470000000 Hz9.9 dBmV39.0 dBEuroDOCSIS
LockedQAM642256952000 sym/sec438000000 Hz14.0 dBmV29.9 dBEuroDOCSIS
LockedQAM642266952000 sym/sec446000000 Hz11.8 dBmV39.7 dBEuroDOCSIS
LockedQAM642276952000 sym/sec454000000 Hz6.0 dBmV40.0 dBEuroDOCSIS
LockedQAM642286952000 sym/sec462000000 Hz9.6 dBmV40.1 dBEuroDOCSIS
LockedQAM642306952000 sym/sec478000000 Hz6.9 dBmV39.6 dBEuroDOCSIS
LockedQAM642316952000 sym/sec486000000 Hz4.5 dBmV40.2 dBEuroDOCSIS
LockedQAM642326952000 sym/sec494000000 Hz7.1 dBmV38.1 dBEuroDOCSIS

Upstream Bonded Channels
Lock StatusModulationChannel IDSymbol RateFrequencyPower
LockedATDMA45120 Ksym/sec53400000 Hz36.0 dBmV
Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV

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Level 23: Superhero

Re: Cable Internet keeps running slow

Have you contact Telstra/Bigpond technical support?

Assuming your service is not slowed/shaped they are honestly the best place to try.

One thing to ensure is that the device you are performing the speed test on is connected to the modem via an ethernet cable.
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