Losing network connectivity - Is there a virus on my system ?

[Manish Jain]

Hi,

I am using FreeBSD 10.2 amd64, with Win XP as a backup OS. Since 
yesterday, I am experiencing a strange situation. Internet connectivity is 
lost every 10-15 minutes. 'ping www.freebsd.org' starts reporting 100% 
packet loss. If I run 'service netif restart', ping reports "No route to 
host".

The only way to fix the problem is to reboot into XP where internet works 
okay. Then I reboot into FreeBSD, where things are okay too - for 10 or 
minutes, after which the story gets played again.

Is it possible that somebody has hacked my system to place some malicious 
code somewhere to make the system behave like this ? Or is somebody on the 
ISP's side doing funny things to bring my internet down ?

Any help would be greatly appreciated.

Thanks
Manish Jain