TCP/IP problems - intermittent?

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cityslicker

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2 days ago, i noticed after booting up a error message appeared.

Access Connection
Connection Failure

this meant i was not able to go online. i communicated with my isp tech support. we were unable to to get an ip address therefore i was advised to
(a) call my laptop computer manufacturer and tell them i I have TCP/IP problems..
(b) turn the dsl modem off for 20 seconds and start up. the connection worked once but not twice
(c) i was also advised to try this method- start- run- cmd. then enter at the prompt - netsh int ip reset reset.txt
and this worked.

but it does not stay fixed. when i turn the laptop on... it seems the Access Connection error massage occurs again. if i use the comand - netsh int reset reset.txt and then reboot i am able to go online. i only tried this once or twice and it worked.

also i did call my computer manufacturer- they said- it is an TCP/IP problem. actually it was software problem and not a hardware problem. so call the ISP for instructions.

can anyone offer a permanent remedy?

many thanks and truly appreciate your replies.

winxp pro sp2 lenovo T61 Intel dual core T9300, 4 gb ram
 
jobeard- i did your recommendations. everything went well. in fact while doing the first nine (9) commands - the access connections message appeared twice- each time validating/making the connection successfully.
 
jobeard

what confuses me is this last command

do i execute it from the command prompt or from the url?

do i type- nslookup w ww. google.com the message -
could not find server name for address 192.168.1.1

then i tried from the command prompt ww. google.com the message- goodl was not recognize as an external or internal command.

nslookup ww w. google.com

i did not know what to do next.
other than that- i had no timeouts or unreachable hosts. so i guess i am good so far.
please advise and thanks for your time and efforts

cs
 
cityslicker said:
what confuses me is this last command

do i execute it from the command prompt or from the url?

do i type- nslookup www. google.com the message -
could not find server name for address 192.168.1.1
Click to expand...
>nslookup www. google.com is from a command line, not a url :)
If you run->cmd /k ipconfig /all
you will see a line line
DNS 192.168.1.1​
and it will exactly match the gateway address
gateway 192.168.1.1​
Your router is not forwarding DNS requests to the ISP router :(

You will need to set the DNS address manually
View Network Connections->Lan Connection->right-click->properties
scroll to the bottom to find Tcp/Ip; select it and click the Properties button
Under the General TAB locate the two radio buttons and click on
use the following DNS server addresses
enter the two known DNS addresses for your ISP
Click OK on this and the parent dialog too​
To do this, I need the domain name of your ISP
(eg; mine is timewarnercable.com ) from which I can find the NAME of the ISP
DNS [ unixCmdPrompt> whois -H xxx] and then reduce it to the IP address for you [nslookup xyz.domainname] :)
 
ok jobeard- this is where the fun begins.

i found the 2 radio buttons. no problem there. but where do i find the two DNS addresses for my ISP? and what is the parent dialogue

my isp is earthlink.net. i do not know its domain name

thanks
 
but where do i find the two DNS addresses for my ISP?
Click to expand...
that was my task as follows:

Earthlink's got pinach! :) The DNS names are
(using whois -H (a unix command) on earthlink.net we find)
Name Server.......... itchy.earthlink.net
Name Server.......... scratchy.earthlink.net

(and then nslookup on the names we get)
itchy.earthlink.net -> 207.69.188.196
scratchy.earthlink.net -> 207.69.188.197
​
put both of these into the DNS parms and just keep closing the windows with OK

Once done; redo these
ipconfig /flushdns

net stop "dns client"
net start "dns client"​

now NSLOOKUP GOOGLE.COM shoud report addresses and http://www.google.com/ should work too.
 
Tcp/ip

okay i did what you skillfully recommended.

everything looks super fine. now i will ask for confirmation that i did everything correctly. i have this question.

at
nslookup goggle dot com
***Can't find server name for 192 dot 168.1.1 non existent domain
***Default servers are not available
Server: unknown
Address: 192 dot 168.1.1

non authoritative answer:
Name: google dot com
Addresses: 74 dot 125.45.100 209 dot 85.171.100 72.14.205.100

But for http :// www dot google dot com and
http: // www dot google dot com
i got the same addresses

BUT for non-authoritative answers... the addresses were different but they were google's.

the question is: did i follow your instructions correctly?

thanks
 
jobeard- it did not take.

i rebooted and i was unable to access connections- connection failed.

i am not sure what i did wrong. <sigh>

i will try it all over again.

the only way i can connect is by- cmd. netsh int ip reset reset.txt and then reboot all over again.

cs
 
cityslicker said:
nslookup goggle dot com
***Can't find server name for 192 dot 168.1.1 non existent domain
***Default servers are not available
Server: unknown
Address: 192 dot 168.1.1

non authoritative answer:
Name: google dot com
Addresses: 74 dot 125.45.100 209 dot 85.171.100 72.14.205.100
Click to expand...
The 192.168.1.1 is still the primary DNS (ie first one listed) and of course it is failing. The Second 'non authoritative answers' are correct
But for http :// www dot google dot com and
http: // www dot google dot com
i got the same addresses

BUT for non-authoritative answers... the addresses were different but they were google's.
Click to expand...
just CLICK on the URL address. do not use it as nslookup http://www.google.com/
 
jobeard- thanks for your help. i tried all over again following your instructions. and i did everything right but... i still cannot access the internet unless i use this command

netsh int ip reset reset.txt

so it appears something else is not right happening. i have no idea what it is. none/zip.

again i wish to thank you. if you have any last minute ideas.. i would like to listen/read.

i have a image backup of 10 days ago. i think i will proceed from there. i will just backup the recent past 11 days and proceed from there.

cs
 
this is bugging me too.

Please run->cmd /k ipconfig /all >myIP.txt

and follow-up one more time and attach myIP.txt
(it will be at \Documents and Settings\yourloginId\myIP.txt
 
sorry jobeard- i already re-did the changes; i restored my earlier disk image. so what i have will not show the errors.

however, i do submit to you by pm the requested info. thanks for all your assistance and savant solutions

i spent way too much time trying to find the solution. i have never seen this type of problem. i even had earthlink tech support help me and <obviously> that did not help.

again- many thanks

cd
 
If your current config after the restore is now working, then the problem was not in the
TCP settings as
the attachment shows
  • DNS 192.168.1.1 (ie your router)
  • Dns suffix: (blank)
If your connection is stable (ie is usable after each boot), then don't do anything :)

Otherwise, add earthlink.net as the Dns suffix:

I also note you have a Gigabit adapter which I've always found to be problematic in
keeping stable.
 
thanks again- everything is working fine... but for curiousity sake- how would i add earthlink,net as the Dns suffix

and how would i minimize the impact of gigabit adapter?

cs
 
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