Win 7 Host lost internet connection after using Ubuntu VM

[TechTrack]

Hello,

I recently starting using Virtual box on my Win7. The Virtual box has one VM; Ubuntu 12.* LTS. There is a bridge network adapter for this VM. My problem is that internet suddenly stopped working on my Win7 but is working fine on Ubuntu. Also, Win 7 host can ping various websites but cannot browser them.
So far I have
- restarted several times
- shutdown and restarted
- changed between NAT vs Bridge adapters for the VM, unchecked network setting for the VM i.e no internet access for Ubuntu.
- Tried "netsh winsock reset" -> "netsh ip int reset resetlog.txt" using administrator privileged cmd prompt on Win 7
- tried Ethernet connection instead of wireless.
- disabled power management for network adapters on Win 7.
- drivers for network adapters have 2012 as update date.

I dont want to uninstall Virtual box or repair Win7.

Thanks..

[noteirak]

Cross posting is not allowed. I've removed your other topic which was an exact duplicate.

About your issue: do you ping the IP or the DNS?
Also, does this happen while the VM is running only or at all times?

[TechTrack]

Hello,

Sorry for cross posting..

The issue resolved itself as of this evening. The only other thing I did is open up my "Nortan antivirus" manager. No virus scan or any fixes were done.

During the issue I could ping sites like www.google.com, so I guess DNS was resolving proper addresses but browser was blocking them.

This is the second time it has happened to me but last time few restarts and shutdowns along with removal of network connection for VM had worked. When the issue occurred this time, I had kept the VM idea for sometime and I was browsing sites on host. The VM had "NAT" connection when the issue occurred.

Norton the culprit?

Thanks again..

[noteirak]

Norton the culprit?

Your symptomps makes it a very likely one, yes.

[TechTrack]

Thank you.