I am having problems with my ethernet internet connection, which ultimately ends up freezing my computer.
Sony Vaio Laptop (VGN-CR220E), bought it last January
-preinstalled with Vista home premium
-realtek Network Adapter Realtek RTL8101E Family (Ethernet)
stuff I had installed initially: Symantec Antivirus, zone alarm basic firewall, webroot spy sweeper
So over the summer im studying in japan at a research lab. To connect to the internet I need to use a wired Ethernet connection as they have no wireless. They told me to manually input my IP adderess and stuff to get my internet to work in ipv4 properties my computer is running a hardware check right now which is taking a few hours so I cant take a screen shot exactly.. but when you open the ipv4 properties I have every line filled in with specific numbers they gave me (x.x not really windows savvy). I also have to run my internet applications (like browser) through a school proxy server.
So for a full week, my internet ran fine without any problems.
Then when I come back to school on Monday my internet suddenly stops working.
Internet would do one of the following (with my guessed percentages of it happening):
-Problem A:Internet would connect, but after a few sec-a couple min. the internet would stop functioning (my browser wont go to websites) after a few seconds windows knows this and changes the networking icon on the bottom right to “limited connectivity”. From here I open the lan connection status window, and click diagnose. After a short while it recommends me to reset my local---------- settings. So I do, at which point one of 3 things would happen
a) windows says it couldn’t fix the problem and says its looking again and comes back with the same option as before (40%) during this time the bottom right says im connected to a network but its called "unidentified network"
b) my internet connects for a few seconds, enough to open a couple webpages, then stops working again (20%) --> repeat problem A
c) computer freezes and my mouse is stuck (I then gotta reboot by holding power button) (40%)
eventually no matter what paths I take it will end up at C and I have to reboot.
-Problem B:upon connected my Ethernet cable after a few seconds my computer would immediately freeze
IF my Ethernet cable was already connected
-As windows is booting up and I see the desktop and stuff beginning to load itll immediately freeze, about half the time
-other half I get Problem A
So since then I have been looking all over the internet for a solution from other peoples similar problems. I have tried:
-updated my NIC driver
-made sure my antivirus, firewall, spysweeper were up to date and (supposedly) vista compatible
-removed zonealarm firewall (as I read it might cause conflicts)
-updated vista using service pack 1
-updated my motherboard bios
-used other peoples Ethernet cables connected to a different switch
-in cmd tried: netsh int ipv4 reset reset.log, netsh winsock reset catalog
-windows hasn’t autopatched between the last time it worked fine and when it started having problems (I think,,, I checked the dates of the autoupdates)
interestingly after I updated my NIC driver my internet worked for a couple hours until the same problem occurred again.
Same thing happened when I updated into vista SP1. (also after SP1, it seems to conflict with spysweeper so im not using it as of now).
There are about 10 other people in my lab room using computers. All of them however are on windows xp. (and if happened to be connected and look into people in my network I see 30+ computers from the other labs). No one else has a problem, and using their Ethernet cable doesn’t help. No one else is having this problem.
When im back home where I live, im using wireless and it works great, problem is only with wired. Why did it work for a week then stop when I didn’t change anything. I find it weird when after some updating of my computer It works for a couple hours (giving my a false sense of hope L ) before returning to its original problem
another note: one time when it crashed (out of like a hundred already), the mouse got stuck for like 1 second, then moved, then 2 seconds, then moved, until it got to like 5 second stuck then permanently frooze. if that observation changes anything.
also: if i boot into safemode with network connectivity i get the exact same problem
also: at one point i tried to use a system restore point from before the problems began occuring. As it was near its final process windows says it failed to restore to that point. Then when i try to system restore again all my restore points were gone. (my ethernet was disconnected at this time to prevent crashing)
Any help will be appreaciated---
Thanksss in advance!!