Packet Drop After Every 5 Minutes When Firewall Disabled

Dec 5, 2012

I have:
Laptop: Acer TravelMate 5744
CPU: Intel Core i3 M380
OS: Windows 7 Professional Service Pack 1 64 bit
Network Card: Broadcom NetLink
Antivirus: McAfee

From time to time (an average of 5 minutes) I experience a packet drop, whatever host I connect to or I ping. The problem is not related to any network device because the problem does not occur on another PC connected to the same switch. And, more interestingly, the problem does not occur on a Linux virtual machine (VMware) installed on my laptop. The problem occurs even if I disable the firewall or the real time check of the antivirus. So, every clue brings to Windows 7 or the network device driver (that is up to date, though). It's important for me because I have to connect to other machines remotely (and the connection drops).

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