I cannot connect to the Internet after Lion upgrade

I'm having a similar problem to some other threads. After upgrading to Lion I cannot access the Internet wirelessly through my Airport base station. All other Macs in the house are working fine. Per the other threads:
- I do not have Avast installed
- I have tried trashing the System Configuration in Preferences
- I have tried creating new locations
- I tried enabling "Auto Proxy Discovery" and "Automatic Proxy Configuration" in Network Preferences.
None of this has worked. Here is the message I get in Safari:
"The operation couldn't be completed. Operation not permitted." (NSPOSIXErrorDomain:1)
I previously was getting a kernel panic after startup when I did the upgrade. But I was able to narrow it down to Intego Content Barrier which I deleted. I then reinstalled Lion and the system seems stable. Just can't get the Internet to work.
Any other ideas or thoughts on this?
Thanks!
David

Don't think Airport is around in Lion
Select Advanced, pictures are in wrong order and I was tired of fighting with it.

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~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
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now my it guy says tht it is beyond his skill level and i should take it into the apple store
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desperate tim

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~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

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Welcome to the Apple Community.
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Cannot connect to the net after installation

Hi All:
I tried to install and work with Archlinux today but was not successful at all.
I downloaded the ISO image of archlinux and burnt it to a CD (Archlinux-i686-2007.05-Duke). I tried to install the distro to my Compaq presario 700AP laptop (AMD Duron/128 MB RAM) Installation went smoothly and then the problems began. I coud not get networking to work. Here are the contents of the /etc/rc.conf file (networking section only given here):
<--- contents of /etc/rc.conf ------------->
lo="lo 127.0.0.1"
eth0="eth0 192.168.1.10 netmask 255.255.255.0 broadcast 192.168.1.255"
INTERFACES=(lo eth0)
gateway="default gw 192.168.1.1"
ROUTES=(gateway) ......................."I removed the ! sign to activate the gateway"
<-------/contents ------>
<--------- contents of /etc/resolv.conf ------------>
and in the /etc/resolv.conf, I have
nameserver 208.67.222.222
nameserver 208.67.220.220
search opendns.com
I typed opendns.com since I have these dns addresses from opendns.
<-------------
When I ping my nameserver (208.67.222.222), it puts out several lines of messages like:
64 bytes from 208.67.222.222: icmp_seq=55 ttl=252 time=284 ms
Likewise, when I ping default gateway, I get several lines of messages like:
64 bytes from 192.168.1.1: icmp_seq=1 ttl=128 time=1.62 ms
Yet I cannot ping google (http://www.google.com), and the error message is: "unknown host", nor can I use pacman to update packages from online repositories.
What am I doing wrong? I have followed the networking guidelines and installation guidelines from the websites.
Do I reinstall archlinux? I am lost.
Best wishes,
/Arin

Thanks for the advice, but I still am not successful and I cannot figure out why.
Dear All:
Thanks for all your responses, but I still cannot connect to the Internet and this is a strange problem.
I use a broadband connection, provided by India's BSNL broadband service, using an external modem (Huawei Corporation; SmartAx MT882). The internet service has provided me the following information:
IP Address: 192.168.1.10
Subnet mask: 255.255.255.0
Default gateway: 192.168.1.1
DNS servers: 218.248.255.145
DNS server(2): 61.1.96.71
In addition, I use opendns and the dns server names are:
208.67.222.222
208.67.220.220
Here are the contents of my /etc/rc.conf (networking section):
HOSTNAME="maurine"
Io="Io 127.0.0.1"
eth0="eth0 192.168.1.10 netmask 255.255.255.0 broadcast 192.168.1.255"
INTERFACES=(Io eth0)
gateway="default gw 192.168.1.1"
ROUTES=(gateway)
Contents of my /etc/resolv.conf
search maurine.com
nameserver 218.248.255.145
nameserver 61.1.96.71
nameserver 208.67.222.222
nameserver 208.67.220.220
If I try using pppoe -I eth0, it waits for some time and then returns a message "timeout waiting for PADO packets"
If I "try /etc/rc.d/adsl start", it returns [FAIL] after some time.
This has never been a problem with my ubuntu or windows installations before, I could easily connect to the web.
What should I do to make sure I can connect to the Internet?
When I ping 192.168.1.1, it takes me to my modem page and from there, when I run the diagnostics, it returns everything ok.
Where may be the problem and what do I need to do to resolve this problem?
Thanks in advance,
Arin Basu

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'''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.'''

I cannot connect to the Internet after Lion upgrade

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