Strange Airport Behavior at startup

[Bitzomondo]

Since I did the last Security Update for 10.3.9:

I startup the Mac and login. There is no immediate internet connection as I used to have.

So: I click on the Airport Status icon in menu bar-> Turn Airport off -> then Turn Airport on -> and connection is restored.

Why so?

Cheers.

[T3ch13]

You may need to go into your system preferences and check your network connection and make sure that you are connecting automatically to your airport base station on startup. good luck

[Bitzomondo]

well actually the Airport (WiFi) signal is there, only that there is no internet connection.

Anybody can help?


cheers

[trevor]

If the Airport signal is there, and if doing something on your computer can restore the "internet connection", then the problem is not the internet connection. It is DNS. When in this state, you should be able to connect to web pages by their IP address, for example http://17.254.3.183 should connect you with apple.com, proving that the internet connection is still there. It's just that you can't use normal domain names because of the problem with your DNS.

The solution is to enter your DNS Servers explicitly in System Preferences > Network > Show: Airport > TCP/IP tab > DNS Servers. You can find out your ISP's DNS servers' addresses from them.

Trevor

[ourstanley]

This can also be due to the router having an 'idle time' on it which drops the internet connection if it hasn't been used for a certain period of time and then reconnects whenever it receives a request for to access the internet - depending on how long it takes to establish that connection again it can appear as no internet connection, but if you take the time to turn off and turn on the Airport it has time to reconnect.

Depending on the router you can set this 'idle time' to a really high value to ensure that it doesn't disconnect given your usual surfing habits.

[Bitzomondo]

My DNS server addresses have already been put in before the problem.

I cannot find an 'idle time' function in my router's homepage.

What now? the problem is really annoying.

[Bitzomondo]

I have set up an encryption for the wireless connection could that be the cause?

Although the problem arose way after I setup the encryption...

[Bitzomondo]

AND now every time I put the Mac to sleep and turn it on again there is no wireless signal. I have to restart to get the signal back.

any ideas?