If you connect directly thru your cable modem, make sure the modem driver is properly installed.
For example:
If using a Motorola SB4200 external cable modem:
http://broadband.mot...roducts/sb4200/
has this driver:
http://broadband.motorola.com/consumers/su...ntinuedProducts
- Win2000/XP:
http://broadband.motorola.com/consumers/pr...B4220_2K_XP.exe
- WinME:
http://broadband.motorola.com/consumers/pr...s/SB4220_ME.exe
- Win98:
http://broadband.motorola.com/consumers/pr...s/SB4220_98.exe
Motorola modem FAQ:
http://broadband.motorola.com/consumers/su...rfboard_faq.asp
If you connect your cable modem thru an internal [PCI or built into the mobo] or external Ethernet network card/adapter (NIC), which has a RJ-45 connector:
http://en.wikipedia.org/wiki/RJ-45
for your cable modem, make sure the NIC drivers are properly installed.
If you connect your cable modem thru a USB [external] Ethernet NIC device, make sure the drivers are properly installed.
If using a firewall router, make sure DHCP server is enabled from the router web-based setup interface.
Routers usually have this IP [open it in Firefox and input your user ID + password]:
http://192.168.1.1/
Most cable modems have this IP when connecting thru a firewall router:
http://192.168.100.1/
In Windows 98 SE, make sure your Ethernet adapter + DHCP protocol are properly enabled:
http://helpdesk.fsu....t/win98dhcp.cfm
and another guide:
http://www.cvesd.k12.ca.us/cvesd/helpdesk/...ig_dhcp_pc.html
Also, run:
winipcfg
and press the "More info" button to make sure your Ethernet adapter + DHCP server are properly configured.
Also, run:
IPCONFIG /release_all
and then:
IPCONFIG /renew_all
or press Release and then Renew buttons while running winipcfg.
Also:
* Winsock/TCP/IP (DUN/RAS) + Layered Service Provider (LSP) 32-bit repair tools [free(ware)]:
http://www.pcbuyerbe...ingProblems.htm
- XP TCP/IP Repair for Windows XP:
http://www.xp-smoker.com/freeware.html
Direct download [464 KB]:
http://www.xp-smoker...ds/xptcprep.exe
- WinsockXPFix for Windows 9x/2000/ME/XP:
http://www.iup.edu/h...net/winfix.shtm
Direct download [1.37 MB]:
http://files.snapfil...insockxpFix.exe
More info:
http://www.pchell.co...nectivity.shtml
- SockFix for Windows 9x/ME:
http://www.lavasoftusa.com/
Direct download [33 KB]:
http://digital-solut...ft/whndnfix.zip
- Winsock2 Fix for Windows 98/ME:
http://www.bu.edu/pc...insock2fix.html
Direct download [60 KB]:
http://www.bu.edu/pc...ccess/w2fix.exe
- LSP-Fix for Windows 9x/NT4/2000/ME/XP/2003:
http://www.cexx.org/lspfix.htm
Direct download [179 KB]:
http://www.cexx.org/lspfix.zip
- Try these 2 commands if using Windows 95/98/ME:
IPCONFIG /release_all
IPCONFIG /renew_all
MSKB: How to Use Windows 95/98/ME WINIPCFG to View TCP/IP Settings:
http://support.micro....com/?id=141698
MSKB: IPCONFIG Windows NT4/2000 Diagnostic Utility:
http://support.micro....com/?id=117662
MSKB: IPCONFIG Windows XP/2003 Diagnostic Utility:
http://support.micro....com/?id=314850
MSKB: How to Recover from Winsock2 Corruption in Windows XP/2003:
http://support.micro....com/?id=811259
MSKB: How to Reset TCP/IP in Windows XP:
http://support.micro....com/?id=299357
MSKB: How to Troubleshoot TCP/IP in Windows XP:
http://support.micro....com/?id=314067
Also, make sure all your comcast cables/splitters/extensions/etc etc are properly screwed in tight.
If also using comcast cable TV, make sure the cable that comes into your house is split into 2 using a dedicated splitter/atenuator [usually provided by comcast technicians for free at install/service time].
From the splitter, 1 cable should go directly to your modem, and the other to your (1st if more than 1) TV/monitor/VCR/DVR/HVR/Tivo/digital box/etc.
Comcast help:
http://www.comcast.net/help/faq/
Comcast internet connection help:
http://www.comcast.com/corporate/customers...d_internet.html
Sometimes the root DNS comcast servers might be under repair/maintenance, so you may need to connect thru alternative public DNS servers instead [temporarily until they fix the problem].
This is how to do this:
Quote
"Crash Cast" a.k.a. Comcast cable DNS troubleshooting
"Crash Cast" is having DNS issues once in a while.
Your internet is slow because of their DNS backend.
Basically you can access some web pages, but you can't access others.
This is a DNS issue, not a line issue!
The solution:
This is verified to work and will resolve your DNS problems, until "Crash Cast" can get their act together and fix their DNS servers.
DNS is one of, if not THE most important protocol you use when connecting to the Internet.
Step-by-step:
- Open your network connection: Start -> Control Panel -> Network Connections.
- Right-click on "your Network Connection name" (Wireless or LAN) -> choose Properties.
- Scroll to TCP/IP Settings ("your Network Connection name") -> highlight it -> choose Properties.
- Under the DNS section -> choose "Use the following DNS server address" -> enter 1 of the DNS servers from the list below.
- Click OK twice to close -> try your Internet connection again.
Public DNS Servers list:
Public (Level3) Nameservers (these are OC192-s)
4.2.2.1
4.2.2.2 (fast)
4.2.2.3
4.2.2.4
4.2.2.5
4.2.2.6 (fast)
Open to the Public
# ns1.la.us.opennic.glue (New Orleans, LA, US) - 68.15.165.12
# ns1.phx.us.opennic.glue (Phoenix, AZ, US) - 63.226.12.96
# ns1.sfo.us.opennic.glue (San Francisco, CA, US) - 64.151.103.120 (fast)
# ns1.co.us.opennic.glue (Longmont, CO, US) - 216.87.84.209
SpeakEasy Nameservers
66.93.87.2
216.231.41.2
216.254.95.2
64.81.45.2
64.81.111.2
64.81.127.2
64.81.79.2
64.81.159.2
66.92.64.2
66.92.224.2
66.92.159.2
64.81.79.2
64.81.159.2
64.81.127.2
64.81.45.2
216.27.175.2
66.92.159.2
66.93.87.2
Sprintlink General DNS
204.117.214.10
199.2.252.10
204.97.212.10
Cisco
128.107.241.185
192.135.250.69
If still no signal, you may want to call comcast for service [toll free number]:
1-800-COMCAST
or:
1-800-266-2278
Service is free for comcast subscribers.
If a technician needs to be sent to your house, you [or an adult > 18 who is the (co)owner of the comcast account] must make an appointment with the service person you're talking to on the phone.
HTH