Every time I try to connect to the App Store on my iMac, my modem crashes. My internet works otherwise okay.

I'm currently running a virus scan to eliminate foul play.
I am also now getting some unsolicited web-pages opening in Safari which is concerning.
Any suggestions please?

Hi, this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.7…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
Click OK.
See if you might have this malware redirecting DNS queries...
http://macmegasite.com/node/3924
http://www.ehow.com/how_2128387_remove-osxrspluga-trojan-horse-mac.html
How to fix...
http://www.macosxhints.com/article.php?story=20071031114140862
Known DNSChanger address ranges. Source: dcwg.org
http://krebsonsecurity.com/2012/03/court-4-more-months-for-dnschanger-infected-p cs/

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Further to: Every time I try to connect to the App Store on my iMac, my modem crashes. My internet works otherwise okay.

My virus scan turned up nothing.
I have confirmed the modem crash only occurs when I try to access the App Store via my iMac.
Also, a Macbook Air also on the same WiFi system does exactly the same thing.
The Internet runs perfectly otherwise, except when trying to access the App Store.
The Modem is a Siemens SpeedStream 4200-Series, operating in Bridge mode.
The WiFi is an Apple Airport Extreme.
FRUSTRATING !!!
(Couldn't figure out how to add this new information to my previous post)

Disable your anti virus software then try the App Store.

Every time I try to connect to the iTunes Store I get this error message "iTunes could connect to the iTunes Store. The host is down. Make sure your network connection is active and try again." 2011 2.3 GHz i5 Mac Mini 8GB ram OS 10.7.2 iTunes ver 10.5

Every time I try to connect to the iTunes Store I get this error message
"iTunes could connect to the iTunes Store. The host is down.
Make sure your network connection is active and try again."
2011 2.3 GHz i5 Mac Mini
8GB ram
OS 10.7.2
iTunes ver 10.5.1
My internet connection is fine.
Anyone know how to fix this? Every reference I have found is old, nothing recent like Lion or newest ver of iTunes.
Help Please!

Hey thatssoivi,
If you are having an issue with being unable to connect to the iTunes store, I would suggest that you troubleshoot using the steps in this article -
iTunes for Windows: iTunes Store connection troubleshooting - Apple Support
Thanks for using Apple Support Communities.
Be well,
Brett L

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Try gn_id's suggestion from the following post:
Re: iTunes 11 crashes when opening the store - no error message

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Mike

Why is it that every time I try to connect to the Internet with my Mac the whole Wi-Fi system comes down and it's only when I turn on my Mac

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Hi,
Please refer the link below to troubleshoot the issue
http://h30434.www3.hp.com/t5/Printer-Networking-and-Wireless/Web-Services-problem-Server-connection-...
Although I am an HP employee, I am speaking for myself and not for HP.
--Say "Thanks" by clicking the Kudos Star in the post that helped you.
--Please mark the post that solves your problem as "Accepted Solution"

Can i configure my security so that every time i wan t something from the app store it needs a password?

I want to configure my security so that every time i " buy" something from the app store it needs a password. Now the appstore remebers my password automatically a few minutes, and my kids buy in app without my knowledge.

Settings>General>Restriction>Require Password>Immediately
Message was edited by: Diavonex

Restart my laptop every time I try to connect to the internet

Ever since we install this router, I have to restart my laptop when I want to connect to the internet. My computer worked fine with my other router. I have two newer laptops that do not experience this issue and I just bought a desktop and wireless adapter and it is fine as well. It is just my HP Pavillion dv6000 that is experiencing the problem. I have windows vista, but so does on of the the other laptops. Every computer in my home is wireless. What could be the issue?

Try to add the network manually on the computer and then check
Click on Start then click Control Panel.
Click on Network and Sharing Center.
Click on Manage Wireless Networks, then, remove all the Networks present in the list(right click and select remove network)...
Click on the Add button.
Click on Manually create a Network Profile.
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Every time I try to connect to the App Store on my iMac, my modem crashes. My internet works otherwise okay.

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