Spyware, viruses, & security forum: suddenly being blocked from certain websites

I see both of the error messages you mentioned, depending on the site.

I did indeed try Firefox to see if the problem was IE, but I still could not reach those pages from within Firefox on my PC.

The Microsoft solution instructed me to clear selections in my security settings that were already cleared.

So, are there other things you would suggest?

Many thanks.

Try using the instructions/links below to download and install the latest version of Java and the Windows Script Engine:

Windows Script Engine Version 5.7
http://www.microsoft.com/downloads/details.aspx?FamilyID=47809025-D896-482E-A0D6-524E7E844D81&displaylang=en

Sun Java
Click on the link to Sun's Java below, then click on the ''Java Runtime Environment (JRE) 6u3'' download button. Follow the prompts, accept the license agreement, then download the full ''Windows Offline Installation'' file to your desktop,(about 15 MB), scan it with your antivirus (just to be sure it's clean). Once that's done, if you've already got a Sun Java version on the computer, open the Control Panel, double click on the ''Add/Remove Programs'' section, then uninstall all previous versions of the J2SE Java listed there. Once that's done, then install Java JRE 6u3 from the downloaded installer.

http://java.sun.com/javase/downloads/index.jsp

Once Java is installed, if you're using IE7, then access the Internet Explorer "Internet Options" settings, "Security" tab, "Internet" icon, "Custom Settings" and change the security level to "Medium", instead of "Medium-High". If you're not using IE7, then set the same settings in IE6 to "Medium".

Hope this helps.

Grif

Yeah, have experience such thing with my 2 computers. Since u've 3 computers there is not quite possibility that all got the same problem within, so, it's more likely to be a conectivity issue. Perhaps your isp got some filter, content limitation, or transfer amount-bandwith limitation. In my case i'm still not sure wot cause it, but usually got it fixed by restarting the computers and the modem generating fresh connection data.

by clicking the following links.

forbes.com is http://63.240.4.179
expedia.com is http://216.251.114.10
dictionary.com is http://66.161.12.81

If you can connect via those links it would appear to be either a HOSTS file problem or possibly a DNS cache problem with a negative entry.

To check your HOSTS file browse to %WinDir%\system32\drivers\etc\hosts (it has no file extension) then simply open it in a text editor such as NotePad and look for the domains you are having problems with. Once found either comment out the entry by prefixing it with # or simply delete the entry.

To flush your DNS cache either re-boot or open a command prompt and type ipconfig /flushdns

If you wish to stop XP from placing negative entries into cache, you can make this change in your registry.

1. Goto HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ Dnscache\Parameters
2. Build a new DWORD value called NegativeCacheTime (the value is case sensitive) and give it a value of 0 (that is a ZERO).

I had the battery on the motherboard die, so the clock did not work. this kept me from getting on the web and gave security warnings. Until I replaced the battey I would boot up then right click the clock to manually set clock to current date this allowed me to log on web.

I have a D-Link Router that uses a air-card to connect with. Last night it had the same problems you are describing here. I only had success by removing the software program from the computer and reinstall the software. I was able to get to the site in question by installing the air-card into the computer but with the router I couldn't get to two different sites. After reinstalling the software I was able to go everywhere I wanted to. I have two different computers, Both have Vista Home Premium and both had the same problem till I reinstalled the software. I dumped all the bookmarks, cookies and all the settings back to default. Maybe this will help but I think there is a trojan or worm that pinged my router last night.I have had One other person have the same problem on my forum site but the tech hasn't been able to get them on-line yet!! I sent this to the forum tech, maybe it will help them to get on-line.

And what about the stuff I suggested or asked you in my post?

While emptying the browser cache or deleting temporary internet files is always a good idea, as is setting the size of the cache to ~80 MB or less, I can't see that being the problem here since it's affecting all three computers and not just one.

http://news.softpedia.com/news/Windows-Vista-Kills-Networks-47208.shtml

Check this out!

my 3 pcs and 1 laptop being blocked by a website. i also use linksys modem+router+wireless. i can't get certain website even by using cable or wireless. if somebody use to solve this prob can i know how?

Have you tried bypassing the router altogether like I suggested? Simply take the Ethernet cable that goes from your modem to your router and plug it directly into the PC which is closest. You'll have to free up the jack on your PC of course by unplugging the cable that is currently going from your router to PC. It's important to try this because it will tell you definitively if your router is part of the problem. If pages load fine when bypassing the router, then you know your PCs are fine.

.....

There are some known issues with your router depending on the version and firmware being used. Look at the serial number sticker on the bottom of the router and you can determine which version it is by matching up the first four characters with the info found on this page: http://www.wrtrouters.com/guides/findversion/

It's possible that you need to upgrade the firmware on your router, but more on that later.

The following info is for when your PC is still connected to your router.

I'm a little surprised you would have never been to your router setup page. In your web browser, type the following into your address bar: 192.168.1.1 or http://192.168.1.1 if you prefer. You will be prompted for a username and password. If you've never configured it before, I believe the default is to leave the username blank and type in "admin" for the password. If that doesn't work, try typing "admin" into both fields.

Once you are on the Basic Setup page, near the top you should see the setting for "MTU". It most likely will be set to "Auto". Select "Manual" from the drop-down menu and change the value in the field below it to 1450. Save your settings with the button at the bottom of the page. Does this have any effect on your web browsing? What about 1460, 1400 or even 1300? If none of these have any effect, you can change the value to 1492 if you're ISP is DSL, or 1500 if it's Cable, but then just set it back to Auto as well.

At the very top right corner of the router setup page, what Firmware Version does it say you are using?

This list of Linksys WRT54G router versions is more up to date:

http://www.dslreports.com/faq/12772

CNET.com must be one of the sites skissner can't access anymore!

Anything new to report? Did you see my latest and posts?

I am facing similar problem since last couple of days after my mcafee internet security suite got expired. only 4/5 websites are blocked which I used regularly but rest all are workig fine on my laptop. I tried installing latest version and resetting security setting including allow/blocked list in firewall but got no success.

Please help if anyone knows cause for this or has solution to this problem.