No Internet Access

[cubiclex]

We just received one of our laptops back from having a bad system board replaced by Toshiba. Now, we cannot connect to the Internet via IE nor can we connect to our ISPs mail server through our DSL line. (This occurs only on this machine as all other users in the office have no problems.) Additionally, I can connect to the Internet and recieve email through the dial-up connection w/o problems. We have a Windows 2000 Small Business Server network and the laptop in question has no problems connecting to our mapped drives on the server. Is there something I am missing? Is there a setting on the local machine "Internet Options" that disables outside access while allowing access to the Intranet? Network settings are the same as all other "working" systems on the network as far as I can tell. "Obtain IP address automatically & Obtain DNS server address automatically". I have uninstalled/reinstalled TCP/IP, the LAN card, Client for Microsoft Networks, MS Office to no avail. Please help. Thanks in advance!

 

[ChrisAC]

In IE check your settings under Tools > Internet Options > Connections. If your dialup setting is there then select 'Never dial a connection'. Providing that you have a default gateway set or you are using a proxy server on the LAN (LAN Settings on the Connections tab) then you should get out okay.

For e-mail, on Outlook check Tools > Accounts > Mail > Properties > Connection > Connect using my local area network (LAN). The chances are that you've got it set up to use the dialer, so you can get out okay through the dial-up connection but it's not trying to use the LAN connection when you want to use the LAN.

Chris.
**********************
Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
**********************

 

[cubiclex]

Thanks for the quick response. Unfortunately, I have already gone that route. In IE, I originally had "Dial whenever LAN not present" and changed it to "Never Dial Connection". Same results - No Internet via LAN.

In Outlook, I have it set to "Connect Using my LAN" is selected.

Again, thanks for the expertise.

 

[InnoTech]

is the other machines set-up to work off proxy server or is it set the same as the new one. go to tools> internet options> connections> LAN settings on the other machines to see. are your other pc's set-up the same as you posted "obtain automaticly"? if so, go to your DOS promt and type "ping yahoo.com" and hit enter. then type "ipconfig /all" hit enter. go to another computer thats online and do the same. compare gateway, ip address, DNS and subnet mask. things will make since when you look at it. let us know what you find out. "Jack of all trades. Master of none."

 

[cubiclex]

Well I did as suggested by Jack of all/Master of none. Thanks by the way. Unfortunately, the results did not help. On the problem machine as well as the other "working" machines tested I found that all things (gateway, DNS, subnet mask were the same. The IP address was different but only by the last number. Should I try configuring a static IP address? Where can I go from here? Thanks again for all your input.

 

[InnoTech]

did you see if there was a proxy server running for the other pc's? "Jack of all trades. Master of none."

 

[cubiclex]

Yes. "Automatically Detect Settings" is selected on both the working and the non-working. Keep feeding me man. This is great! Thanks.

 

[bgross22]

I would try to disable the dial up account in the control panel under network and dial up accounts. What does it say when you try to access the internet? Does it just go to that page telling you to check your network settings?

 

[cubiclex]

Yes I tried that as well. Thanks for the suggestion. The thing is that even when it was configured to "Dial a connecetion when network is not present" it failed to do so. The machine recognized that the network connection was present as it is able to connect to the Win2k server network and view/copy files and therefore probably didn't think that it needed to initiate dial up communications. I will leave this post open for the rest of the day and then it is bye bye time as I will wipe it clean and reinstall everything. I am still open to suggestions and really appreciate all of those who have contributed to my cause. Thanks again!

 

[InnoTech]

i'm sitting here trying to think of the best way to tell you how to do things and what to check. its kinda hard because there is so many things it could be and i don't know how much you know about computers and neworking. if you were one of my customers and we were on the phone it would be MUCH easier but i guess that could be left unsaid.

when you were at your dos prompt did you ping yahoo.com or did it not allow you to? if not try pinging 66.218.71.198 that is one of yahoo's ip addresses. this will show if it is a dns problem. if you can't ping either then we are still looking at network problems. and if so and what you're saying is true about the other pc's and ipconfig then we can go a totally different route.

by the way, when booting up the pc is there any logon information to put in are you logging on to any specific domain?


"Jack of all trades. Master of none."

 

[cubiclex]

Thanks "Jack". My knowledge is old but still useful as I have my CNE (Novell 4.11) and my MCSE (WinNT 4.0). I did attempt to ping 66.218.71.198 earlier right after the yahoo.com ping. No cigar.
Logon - Yes. The user has a logon name and password to logon to our domain. Thanks again!

 

[InnoTech]

try setting your ip information static (ip address, DNS gateway) to a working pc's info. (i think you posted something close to this earlier) then restart and try to get online. you would need to shut down the pc that you are stealing the info from first to not have duplicates. this will tell you if your tcp/ip info is hendering access, meaning there may need to be permissions set on server/router. "Jack of all trades. Master of none."

 

[cubiclex]

Tried it and failed. Connected to our domain but not to the outside world. Thanks again for the suggestion.

 

[cubiclex]

I finally figured it out, now I just need to fix it. I logged into our Firewall (SonicWall SOHO3) and found that we had an error message "License exceeded: too many IP addresses are in use on your LAN". Apparently the DHCP server is not releasing the IP addresses(or at least not fast enough to enable new machines to log on). My new question is how do I clear this? Will it hurt to power down my firewall and DSL routers and bring them back up? Will that clear the IP addressing issue?
Thanks again!

 

[InnoTech]

i don't know how having "private" ip addresses (192.168.*.*) would give you such an error. the dhcp from your provider is only releaseing 1 ip address for the firewall/router and the router takes care of the internal pc's not dhcp. so, i guess you're right just reset the dsl router then firewall then pc's. that is if you have it connected in that order (the order of recycleing WILL make a difference) that shouldn't harm anything. "Jack of all trades. Master of none."

 

[cubiclex]

Yep. That did it. I rebooted the firewall and DSL router and everyone is happy now. Thanks for the help along the way. Now I need to find out how to change the IP address "leasing". Would this be something in the firewall that I would need to set?

 

[InnoTech]

most broadband ISP's dhcp servers use 24 hour leasing. if i were you i would contact them and find out how hard it would be to set a static ip up for you. this way you should be able to login to your firewall and set the static or in past experience still have it on useing dhcp but it will never change because you MAC ID will be set a "ip reserve" in which the dhcp will always know to release the same ip lease. let me know if that helps!
"Jack of all trades. Master of none."

 

[cubiclex]

Thanks.