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Cannot access http://192.168.100.1 or http://10.0.0.1

Frequent Visitor

Cannot access http://192.168.100.1 or http://10.0.0.1

Hi all,

 

Been having drop/connection loss issues for quite a while now. 99% of the time, it resolves itself and reconnects within 1-5 minutes, but the issue is becoming a big problem as I work from home and logs me off my work network everytime the signal drops out and I lose connection.

 

I went to run both of the above web addresses to get the necessary information to post here, but neither will work. I get a "timed out" error on 192.168.100.1 and I keep getting "incorrect login" on 10.0.0.1, even though I know my Comcast User ID & PW are being entered correctly.

 

Can someone point me in the right direct to access one of these two pages?

Thanks,
Brian

Expert

Re: Cannot access http://192.168.100.1 or http://10.0.0.1

What is the exact make and model number of the device ? 



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Frequent Visitor

Re: Cannot access http://192.168.100.1 or http://10.0.0.1

I have the SMCNetworks SMC DOCSIS 3.0 Wireless Gateway Cable Modem and Router SMCD3GNV from Xfinity.

Expert

Re: Cannot access http://192.168.100.1 or http://10.0.0.1

There have been many posts here lately about this issue. Seems to be a firmware glitch. If this is via a wireless connection try using a hardwired via ethernet cable connection direct to the device. You could also try resetting it to factory defaults by holding in the recessed reset button on the rear for 25-30 seconds but this will wipe out any custom setting that you may have made including the WiFi password / key and they will need to be re-done from scratch.



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Frequent Visitor

Re: Cannot access http://192.168.100.1 or http://10.0.0.1


EG wrote:

There have been many posts here lately about this issue. Seems to be a firmware glitch. If this is via a wireless connection try using a hardwired via ethernet cable connection direct to the device. You could also try resetting it to factory defaults by holding in the recessed reset button on the rear for 25-30 seconds but this will wipe out any custom setting that you may have made including the WiFi password / key and they will need to be re-done from scratch.


Thanks for the info. It is not via wireless as the PC is connected via ethernet cable to the device. I wouldn't want to have to build from scratch, so it looks like I'm out of luck here Smiley Sad

Expert

Re: Cannot access http://192.168.100.1 or http://10.0.0.1

You can call 1-800comcast and ask a rep to tell you if the signal stats are in spec or not.



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Frequent Visitor

Re: Cannot access http://192.168.100.1 or http://10.0.0.1

Oh okay. Thanks for your help!

Expert

Re: Cannot access http://192.168.100.1 or http://10.0.0.1

Good luck !



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Gold Problem Solver

Re: Cannot access http://192.168.100.1 or http://10.0.0.1


Triplea916 wrote: ... I keep getting "incorrect login" on 10.0.0.1, even though I know my Comcast User ID & PW are being entered correctly. ...
Are you using userid "admin" and password "password", or did you change them? (See https://customer.comcast.com/help-and-support/internet/securing-wireless-gateway-network/ )
Frequent Visitor

Re: Cannot access http://192.168.100.1 or http://10.0.0.1


BruceW wrote:

Triplea916 wrote: ... I keep getting "incorrect login" on 10.0.0.1, even though I know my Comcast User ID & PW are being entered correctly. ...
Are you using userid "admin" and password "password", or did you change them? (See https://customer.comcast.com/help-and-support/internet/securing-wireless-gateway-network/ )

I was not...thanks for pointing out the correct Username & Password.

 

Now that I'm in, here is the information:

 

Downstream Channel Bonding ValueIndexLock StatusFrequencySNRPowerModulation

1234
LockedLockedLockedLocked
573.000 MHz579.002 MHz584.998 MHz603.002 MHz
35.973 dB35.973 dB36.175 dB37.636 dB
-1.925 dBmV-1.791 dBmV-1.038 dBmV-0.545 dBmV
256 QAM256 QAM256 QAM256 QAM

Upstream Channel Bonding ValueIndexLock StatusFrequencySymbol RatePower LevelModulationChannel ID

1234
LockedNot lockedLockedLocked
27.400 MHz 33.799 MHz22.600 MHz
5120 KSym/sec 5120 KSym/sec2560 KSym/sec
47.7500 dBmV 49.0000 dBmV47.2500 dBmV
64QAM 64QAM16QAM
2 13

 

Frequent Visitor

Re: Cannot access http://192.168.100.1 or http://10.0.0.1

Forgot to include the other information:

 

I have contacted Comcast numerous times in the past, but they were always able to get the internet working using the "unplug" or "reset" method, so they never would send anyone out to investigate why this continued to happen.

 

When connection drops, I lose the Tel1 light and the Online light. They will then come back up blinking, until either one of 3 things happens 1) it automatically reconnects itself without intervention by me 2) it will come back up once I unplug and replug 3) if 2 fails, I will reset and then it comes back up in 3-5 minutes.

 

As detailed above 192.168.100.1 does not work for me, so I cannot post error logs, unless there is another method I can pull this information.

 

Regards,

Brian

Expert

Re: Cannot access http://192.168.100.1 or http://10.0.0.1

The upstream power is a bit on the high / borderline side (especially on channel # 3 and may be intermittently fluctuating even higher out of spec.That will cause random disconnects and spontaneous re-booting of the modem.

 

In an effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured ? Any splitters that remain should be high quality and cable rated for 5-1000 MHz, bi-directional, and no gold colored garbage from Radio Shack, Home Depot, etc. 

 

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two way splitter connected directly off of the drop from the street/pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate.




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