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Network Timeouts while connected?


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#1
inf

inf

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I get my cable internet through Comcast. I had a Netgear Gateway wireless router/router/cable modem combo. Last Thursday I started being unable to get online, comcast guy came to my place on Saturday and said he couldn't do anything and had to dispatch a line technician the next day.

Line tech worked on my area on Sunday and Monday and apparently "fixed" whatever problem it was. However, I still could not get onto the internet. The strange thing is that whenever I speak to the comcast phone support people, they "see" me a being connected and there is nothing wrong with my connection. I can repair my connection (renew ip address, clear data, etc, etc), I can go into cmd and ping my ip address send=4, receive=4, loss=0, but when I ping any website I get send=4, received=0, loss=4. I made sure that my ip address was a good ip address already.

Someone at Comcast said it could be a gateway problem so I went out and bought a Motorola Surfboard SB5101 (which comcast uses) had it activated by comcast and still I get the exact same results.

Then a phone support person said it could be a browser configuration that is causing me to time out everytime but I use Ventrillo, Skype and other programs that tries to access the internet sans browsers but I am still unable to connect. I also tried connecting to the interent via my PS3 and it didn't even time out then, it just said the cable was not connected.

Any help or ideas would be greatly appreciated, I'm at a loss and from the looks of things so is Comcast.

I have two computers:

Desktop running Windows XP Service Pack 3
Laptop running Windows Vista Home Premium

Edit: (Additional Info)

I looked around the forums more, I tried accessing the internet with Internet Explorer, Firefox and Chrome, all with similar results.
I do not have a personal firewall program like ZoneAlarm, I have even tried to get online with windows firewall turned off and anti-virus software turned off.
Since I started having this problem last Thursday, I also tried doing a system restore to a point prior to that and that didn't work either.
LAN setting is also set to auto-detect.
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#2
Untalented

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Hi inf,

Do me a favor and get rid of the middle men for now (the extra routers) and just plug 1 PC directly into the modem (Use the XP Desktop). Once it's plugged directly into the modem do the following for me:

Get your default gateway IP address
  • Press Start
  • Press Run
  • Type "cmd" and click OK
  • Type ipconfig and press enter
  • Make note of Default Gateway Address

**Keep the Command Prompt Window Open**
**Also note: The single '>' and double '>>' are intentional; please type the commands exactly as they appear**


Save IP Config
  • ipconfig /all > C:\results.txt

Save and Conduct Ping Tests
**DG = Default Gateway Gathered in First Step**
  • route print >> C:\results.txt
  • ping 127.0.0.1 >> C:\results.txt
  • ping DG >> C:\results.txt
  • ping google.com >> C:\results.txt
  • ping 209.85.171.100 >> C:\results.txt

Once the above commands have completed, navigate to your C: drive and open the text file results.txt -- please copy/paste the contents of this file into your next response.
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#3
inf

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My results (Thank god for mooching wifi... otherwise typing this on a phone WOULD NOT be fun!)

Windows IP Configuration



Host Name . . . . . . . . . . . . : Toshi

Primary Dns Suffix . . . . . . . :

Node Type . . . . . . . . . . . . : Unknown

IP Routing Enabled. . . . . . . . : No

WINS Proxy Enabled. . . . . . . . : No

DNS Suffix Search List. . . . . . : hsd1.md.comcast.net.



Ethernet adapter Local Area Connection:



Connection-specific DNS Suffix . : hsd1.md.comcast.net.

Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Controller

Physical Address. . . . . . . . . : 00-19-B9-0F-B8-E6

Dhcp Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

IP Address. . . . . . . . . . . . : 73.223.40.40

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : 73.223.40.1

DHCP Server . . . . . . . . . . . : 68.87.73.15

DNS Servers . . . . . . . . . . . : 68.87.73.242

68.87.71.226

68.87.64.196

Lease Obtained. . . . . . . . . . : Tuesday, May 19, 2009 7:30:03 PM

Lease Expires . . . . . . . . . . : Tuesday, May 19, 2009 8:30:03 PM

===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 19 b9 0f b8 e6 ...... Broadcom NetXtreme 57xx Gigabit Controller - Packet Scheduler Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 73.223.40.1 73.223.40.40 20
73.223.40.0 255.255.255.0 73.223.40.40 73.223.40.40 20
73.223.40.40 255.255.255.255 127.0.0.1 127.0.0.1 20
73.255.255.255 255.255.255.255 73.223.40.40 73.223.40.40 20
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
169.254.0.0 255.255.0.0 73.223.40.40 73.223.40.40 20
224.0.0.0 240.0.0.0 73.223.40.40 73.223.40.40 20
255.255.255.255 255.255.255.255 73.223.40.40 73.223.40.40 1
Default Gateway: 73.223.40.1
===========================================================================
Persistent Routes:
None



Pinging 127.0.0.1 with 32 bytes of data:



Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128



Ping statistics for 127.0.0.1:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 0ms, Average = 0ms



Pinging 73.223.40.40 with 32 bytes of data:



Reply from 73.223.40.40: bytes=32 time<1ms TTL=128

Reply from 73.223.40.40: bytes=32 time<1ms TTL=128

Reply from 73.223.40.40: bytes=32 time<1ms TTL=128

Reply from 73.223.40.40: bytes=32 time<1ms TTL=128



Ping statistics for 73.223.40.40:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 0ms, Average = 0ms



Pinging google.com [74.125.67.100] with 32 bytes of data:



Request timed out.

Request timed out.

Request timed out.

Request timed out.



Ping statistics for 74.125.67.100:

Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),



Pinging 209.85.171.100 with 32 bytes of data:



Request timed out.

Request timed out.

Request timed out.

Request timed out.



Ping statistics for 209.85.171.100:

Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
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#4
Untalented

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Okay well good news is you're getting valid IP's and can ping your gateway (this is very good). Now we just need to figure out why you can't get passed this point. Do me a favor and ping both of your DNS servers:

68.87.73.15

68.87.73.242

And utilize the same method as before to write them to a file and post the results.

Also, do me another favor and see if when you open a browser like IE if it opens anything whatsoever or even redirects to a Comcast website. If you are now using the new Motorola modem you're going to need to call Comcast and verify they have your devices MAC address so they can setup your line for the new modem. In this sense cable is unlike DSL in that you can basically purchase any DSL modem and if you know your login information then it will work. With Comcast they must have your devices MAC address in their system and have it setup for it to be able to get online through their network.

Do the above and let me know about the Comcast stuff I said above.
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#5
inf

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My results: (see my comments after results regarding comcast activation)

Pinging 68.87.73.15 with 32 bytes of data:

Reply from 68.87.73.15: bytes=32 time=15ms TTL=247

Reply from 68.87.73.15: bytes=32 time=13ms TTL=247

Reply from 68.87.73.15: bytes=32 time=15ms TTL=247

Reply from 68.87.73.15: bytes=32 time=12ms TTL=247



Ping statistics for 68.87.73.15:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 12ms, Maximum = 15ms, Average = 13ms



Pinging 68.87.73.242 with 32 bytes of data:



Reply from 68.87.73.242: bytes=32 time=15ms TTL=57

Reply from 68.87.73.242: bytes=32 time=13ms TTL=57

Reply from 68.87.73.242: bytes=32 time=25ms TTL=57

Reply from 68.87.73.242: bytes=32 time=12ms TTL=57



Ping statistics for 68.87.73.242:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 12ms, Maximum = 25ms, Average = 16ms



Activating my cable modem was actually the first thing I did. When I had first plugged in the cable modem (pre-activation) it would take me to the comcast setup page where I could choose whether I was a customer or a technician. However, once I called Comcast and gave them all the necessary information (serial number and MAC ID) and Comcast activated my modem, that was when I started experiencing the exact same problems I had with the old gateway.

I've tried using Internet Explorer, Firefox and Google Chrome. All of them just times out.

Edited by inf, 19 May 2009 - 07:01 PM.

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#6
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Okay honestly man you can ping your gateway and comcasts DNS servers. However, you still can't access any website. This issue really looks to be like an issue with Comcast. Call their support and verify you leave it so that only your computer is connected directly to the modem. I'm sure something is screwed up on their end while you were activating. I had the same issue with my modem using the website to activate.
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#7
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Also if you want you can try the following to rule out any Application issues which may be causing a problem.

Restart your machine in Safe Mode with Networking:
Please restart the problematic machine in Safe Mode with Networking and then see if you can get an Internet connection; can you?
*Note: You will not be able to use a wireless connection while in Safe Mode; please ensure all tests are performed with a wired (Ethernet) connection.

Let me know how the above works out.

Edited by Untalented, 19 May 2009 - 09:12 PM.

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