DNS unable to resolve ip address....

[opnight]

i have DSL connection yea. my router and modem are built as one. i think ill get my dad to ring up my ISP...

ive attached the exact problem below so take a look please. oh yea my firmware is up to date also.

[TurcoLoco]

i have DSL connection yea. my router and modem are built as one. i think ill get my dad to ring up my ISP...

ive attached the exact problem below so take a look please. oh yea my firmware is up to date also.

Ok, then the problem is likely to be with the Modem/Router combo unit.

Since it is multiple applications that are having the problem, it is obvious that the issue is with the network connection in general.

Here is a basic way to troubleshoot network connection issues:

Start > Run > cmd_/k_ipconfig_/all > OK (note: each underscore is a single space)

I simply ping each one of the following until I find where it times out:

1. TCP Software. . . . . . . . . . : 127.0.0.1
^ This confirms, TCP protocol is working properly.

2. IP Address. . . . . . . . . . . . : Whatever yours is
^ This confirms, Your machine is getting assigned an IP.

~~~ Up to this point you confirmed the software based network functionality on the machine, after this point you will actually be reaching out via Network Interface Card (NIC) to use the connection you have ~~~

3. Default Gateway . . . . . . . . . : Whatever yours is
^ This confirms, Your PC can communicate with the Gateway. If a Router is used, this'd be the IP address of the Router. If not, then generally the same as the DNS IP which is received by your Cable/DSL modem. If there is a router and it can not be ping'ed then it is likely the PC can not communicate with the router:
~ Is the PC properly connected to the router?
~ Does the light in the back of the router illuminate green indicating a valid connection?
~ If there is one, does the light on the NIC illuminate?
- If it is all good up to this point, yet Router/Gateway but you still can't ping the router then either a software (corrupt/misbehaving application or an undesirable, malicious code) is preventing the connection OR NIC is likely to be BAD.
Corrupt/Misbehaving software: a legit firewall or Internet Security type utility is either damaged or acting up.
Undesirable/malicious code: virus, worm type program, if already cleanup then likely a collateral damage, further troubleshooting will be needed.


~ Are there any other machines connected to the same router, if so can they connect to it?

4. DNS Servers . . . . . . . . . . . : Whatever yours is
^ This confirms, connection to the given DNS servers. If there is a separate router present and you are not able to ping the DNS servers, then that would mean the router is not able to communicate with the modem:
~ Is the router properly connected to the modem?
~ Is the Modem powered on with all applicable green lights illuminate?
~ Is the modem properly connected to receive network signals from ISP?

Other possibilities: the cable/DSL modem is not configured properly (reset might help) or it is not working (Power off both the modem and the router and also reset router).

~TL