+ 0 Votes Why are you re-posting again and again!!!??? Mehul Bhai 4 years ago Why are you re-posting the same question again and again!!!??? This is your third or fourth post regarding the same problem.Why not continue in the question already posted previously giving more details of the problem? This will help us here in helping you properly to solve your problem. + 0 Votes It would be useful, for example, to know how you connect to the Internet robo_dev 4 years ago I would assume that the ethernet connection on your server plugs into some sort of firewall/router, cable modem, or similar device? + 0 Votes Can ping sharq.66 4 years ago My server is ethernet port is connected to Linksys Router (WAG54G2)Ok..when i faced the problem i tried pinging www.google.com but unable to ping..But when i ping the google i got the reply..:Oany advice ? + 0 Votes DNS problems TobiF 4 years ago It seems the DNS server you're using isn't stable enough.I didn't understand what ping was successful, but if www.google.com fails, but google.com works, then the ip address of the second address may have been cached somewhere near your computer.What ip and dns settings do you have in your computer? (issue ipconfig /all in the command window) + 0 Votes ipconfig /all sharq.66 4 years ago PPP adapter RAS Server (Dial In) Interface :Connection-specific DNS suffix :Description........: WAN (PPP/SLIP) InterfacePhysical Address : 00-53-45-00-00-00DHCP Enabled : NoIP Address : 172.16.0.225Subnet Mask : 255.255.255.255Default Gateway : Ehternet adapter Local Area Connection :Connection-specific DNS suffix :Description : HP NC373i Multifunction Gigabit Server AdapterPhysical Address : 00-1B-78-72-0E-C8DHCP Enabled : NoIP Address : 172.16.0.2Subnet Mask : 255.255.255.0Default Gateway : 172.16.0.101DNS Servers : 172.16.0.2This is my ip configuration.When i face the problem last night i tried to ping www.google.com on command prompt, but i got no reply...When i tried to ping the google with google ip...i got the reply...Any furhter advice on this ? + 0 Votes Do you have a DNS server running on your server? TobiF 4 years ago I note that your IP address (on the Ethernet interface) is the same as the DNS address.This means that whenever your computer needs to resolve an internet address (like www.google.com) into an ip address (like 18.104.22.168) it will contact... itself.So, there should be a DNS server running on your server. And this DNS server needs to be correctly configured.Do you need your server to handle dns requests? (This could be the case if you use logical addresses within your local network, or if you want it to maintain the dns records of some internet domain)If YES, then go find your DNS server program and its settings, there are some problems there.If NO, then contact your internet provider and ask them for the ip addresses to their DNS servers. You should get at least two different addresses from them. As an alternative, you could rely on, a public dns service, for instance - Google (In that case, enter the following dns addresses: 22.214.171.124 and 126.96.36.199) + 0 Votes Domain sharq.66 4 years ago Sir, we are using windows server 2003 (172.16.0.2) as VPN server and also as Domain. We use to connect clients through this Domain. Now what IP address shall i assign in Preferred DNS Server ? + 0 Votes Is this ipconfig from your DNS server? seanferd 4 years ago If not, the DNS server address is wrong, as it is the same as the IP address.DHCP is off, so you need to manually configure everything, don't forget.You have no default gateway in your PPP adapter.What is the Ethernet default gateway Default Gateway : 172.16.0.101. Is this a router? If so, what is the PPP adapter for?As to the VPN - DNS for the VPN is determined by the other end of the VPN tunnel. + 0 Votes As I understand it... TobiF 4 years ago This seems to be the domain controller itself. I believe that the dns resolver service on this machin is either absent or misconfigured (which might include pointing to an ISP dns with bad performance).The PPP adapter was for dial-in. And nowadays we're so used to ethernet that we sometimes forget that PPP, being point-to-point, don't use netmask and gateway, since there's only one way to go... + 0 Votes To Clarify robo_dev 4 years ago If you launch the web browser on the server, you cannot get to google?Is the IP configuration for the server set to point to the router as the primary DNS server?Can you ping the DNS server of your ISP?Was this working normally at some point or is this a new install? + 0 Votes was working fine sharq.66 4 years ago yea..it was working fine absolutely fine...and the ip configuration is also correct...i use internet from the same ip configuration..its not a new install + 0 Votes What do you mean "unable to ping"? seanferd 4 years ago Ping is not an internet tool. Frequently, ping and tracert will time out, as many routers and servers discard ICMP packets for security reasons. + 0 Votes OP should be able to ping the DNS servers of the ISP robo_dev 4 years ago DNS servers are the first thing that seems to fail at any ISP. + 0 Votes Not necessarily. seanferd 4 years ago Many do not respond to ICMP any more, in order to guard against DoS attacks.That being said, Google does respond to ping, so that test would be valid.But this is self-contradictory, or poorly phrased: <i>i tried pinging www.google.com but unable to ping..But when i ping the google i got the reply</i>. ?? + 0 Votes When it stops working, are you able to ping your router? robo_dev 4 years ago And also, are you able to get to the Web configuration page of your router when it fails? + 0 Votes Yea i can ping router sharq.66 4 years ago i can ping the router and also get web configuration page of router when my server fails to connect to internet + 0 Votes Then the next question is, does the router status page robo_dev 4 years ago show that you have an IP address? I assume that you are using either ADSL or cable modem to get to the Internet?Do you have a static IP address provided by your ISP or dynamic? + 0 Votes yes it shows sharq.66 4 years ago The router status page shows IP address.We are using ADSL to get the internet.ISP provided us static IP + 0 Votes Well then the next thing would be to determine the DNS address of your ISP robo_dev 4 years ago typically that's automatically assigned, so it should appear in your router.If, when your Internet connection is in failure mode, you can ping the DNS server of your ISP the whole time, then the next test would be to try surfing by IP address.For example, if www.google.com does not work, then goto 188.8.131.52 which is one of Google's IP addresses.It's possible that your DNS settings are incorrect in the server or perhaps you have a virus that is hijacking your DNS process.The utility to test DNS function is called nslookup. At the cmd prompt type nslookup www.google.com and you should get a valid response if DNS is working properly. + 0 Votes Can't find server name sharq.66 4 years ago Thanks for the post.When i tried nslookup www.google.com it says,***Can't find server name for address 172.16.0.2 (server ip): Non-existent domainServer : UnKnownAddress : 172.16.0.2Non-authoritative answer:Name : www.l.google.comAdresses : 184.108.40.206, 220.127.116.11, 18.104.22.168Aliases : www.google.comAny further assistance + 0 Votes Change router DNS settings to to The 'G-Man.' 4 years ago 22.214.171.124126.96.36.199then go home + 0 Votes Considering this network setup, seanferd 4 years ago I'll bet it requires nxdomain responses from internet resolvers. This will break nxdomain unless the user creates an account and turns off the proxy and correction services, or creates exceptions.I can't even begin to count the reports of otherwise well-configured networks which rely on nxdomain before attempting local resolution. Ridiculous but true. + 0 Votes When it stops working, are you able to ping your router? robo_dev 4 years ago And also, are you able to get to the Web configuration page of your router when it fails?