Strange problems with wireless (?) network/internet

Status
Not open for further replies.
Hi!

This is really weird.
This is the situation:

Router/Modem: DLINK dsl g-604t
Lap1 & 2: Win2K, Win2K server + PC-card (DLINK DWL-650+)
Desktop 1: XP Pro with SP2 incl. MS Firewall, TP-cable to Router
Desktop 2: XP Home, ZoneAlarm. USB wireless Network adapter (DLINK GWL-122) alternitavly Philips ???.

The thing is that my Laptops works perfect using the PC-cards, but when I tried the USB adapter it failed i a way later described. The same problems occur when using USB adapter with desktop, and when connecting with TP-cable directly to router.

Now to the symtoms: I can connect to all other computers in my Workgoup, and I can connect to internet. BUT, I can't seem to connect to some web pages/domains. For example, no microsoft site will show up, no msn or msdn site, and another site that wont show up in browser is www.idg.se. Some problems also with MSN Messenger, though it will work after some tries.
The browser just awaits and the progress bar's just paused. Pinging these sites gives no reply, neither from cmd or Router admin page. It won't help typing the IP-adresses of those pages, the same result. Running Tracert from cmd prompt, usually makes 8-10 jumps but then it stops, no response
I know micfrosoft have turned off the ping response function but I did this for other pages where this function is enabled, still no response.

Is there a known problem, that I'm not aware of, with USB ports, wireless "internet" and for example packet size...?
Any other suggestions?

The struggle goes on...
/Rickard
 
What does your host file look like?

Some virus's will attempt to disable access to Microsoft sites.

Have you had any viruses lately?
 
Hi!

Actually, I've looking into my hostfile for some time as I was told what you just mention. There is nothing weird with it, only localhost is present

One strange thing is, if you noticed it, the problems also occcurs with my desktop which direct connected to router (no wireless). Another thing I saw was to disable Windows Zero Wireless Configuration service (or similiar)...

Still seraching for the answer...
Thanks anyhow

/Rickard
 
There are many techniques to interfere with a URL.
I suggest the tool from Safer Networking Limited,
Spybot SD
Install and immediately update and then run
Spybot can find amazing stuff and after getting things right, will
assist you in keeping your system clean, eg: immunize against problems
like yours. The other tool is Spywareblaster at http://www.javacoolsoftware.com/
 
Already have thos tools, and HiJackThis also... Running them frequently so I know I'm clean (but once I wasn't). There have to be something else that causes this

One strange thing is, pinging for example www.idg.se gives a timeout, but the IP adress is revealed, the result of ping www.idg.se is:

C:\Documents and Settings\Pappa>ping www.idg.se
Skickar signaler till www.idg.se [213.132.123.119] med 32 by
Begäran gjorde timeout.
Ping-statistik för 213.132.123.119:
Paket: Skickade = 1, mottagna = 0, Förlorade = 1 (100 %)


And Tracert www.idg.se gives:
C:\Documents and Settings\Pappa>tracert www.idg.se
Spårar väg till www.idg.se [213.132.123.119]
över högst 30 hopp:
1 32 ms 8 ms 9 ms mygateway.ar7 [192.168.1.1]
2 22 ms 18 ms 19 ms kst-ka-lo0.utfors.net [195.58.100.203]
...
8 40 ms 26 ms 20 ms gateway1.idg.se [213.132.124.1]
9 * * * Begäran gjorde timeout.


and the time out goes on ...

Isn't this weird, that pinging resolves the IP and tracert makes som jumps, but there is no chance I'm getting at the web site in the browser

/Rickard
 
I can't ping that site either, but I can access it through my brower.

If I enter the IP directly into my brower it fails also with an unable to browse virtual directory error.

Can you ping microsoft.com?

How are your internet settings set up? ie... is it autodetect in IE (or whatever you use?)
 
hum; don't feel bad, I can't ping it either from Los Angeles, CA, USA!!!
whois www.idg.se reports NOTHING found!
nslookup www.idg.se [using the adelphia.net dns server] also reports the same IP address.

Your site appears to be bogus! where did you get that name?
 
Beware of websites w/o url names

You should be aware that it is quite normal to serve web pages from a server
and yet by router and firewall controls, to disable replies to PING.

The cited www.idq.se url is a special case of your problem as there is
no DNS entry for the url which should have pointed to the cited IP address.
BE CAUTIOUS. Just because there's a website on port 80 at that address,
does not imply any 'legality or official status'.

If someone purchases a website domain URL correctly,
the whois database will report the company and/or individual that bought it
and contact infor for same.

the nslookup service as well as whois will map name->address or address->name.
Without these mappings, your site is very suspect.

If I were to open port 80 on my firewall and port forward to my Linux system,
you would be able to use my public IP address to access my private Apache server too.

Access www.idq.se (http://213.132.123.119) at your own risk.

Your other sites are the real problem(s) and you may have been subject to
DNS Cache Poisoning, ie: your ISP now has invalid mappings for
url->ip addresses for those cited. You need to contact the ISP and seek
resolution support from them.

btw:
you cite msnd (assumed to mean msdn.microsoft.com)
and msn (assumed to be msn.com)
the current mappings are:
msdn.microsoft.com ->207.46.196.115
...................................207.46.248.109
ms.com -> 207.68.172.246

If you open a CMD prompt and enter
nslookup msn.com
you must get an address NetRange: 207.68.128.0 - 207.68.207.255
anything else is DNS Cache Poisoning
 
OK, interesting things, the stuff about nslookup and ping versus DNS name... didn't know that.
But the thing is, I know the problem doesn't lies with the ISP, since I can reach those sites with my Laptops when they're equipped with wireless PC cards. And as for microsofts sites I know the've turned off the ping function

/Rickard
 
I dont know whether you have sorted the problem but if not try changing the MTU to 1400 if you can, it is probably found in the WLAN settings on the router.
 
Actually, these MTU/MRU settings was my first problem, before getting anything at all working. So one of the first things I did, was setting these values to 1400

But thanx for the tip, anyway

I still haven't got a single clue ...


/Rickard
 
Status
Not open for further replies.
Back