Good suggestion. Also, make sure there is no funky turn-off-the-NIC-to-save-power setting in the driver or NIC management utility. I've seen those do strange things from time to time.
And update the driver if a newer one's available. On Thu, Apr 26, 2012 at 4:18 PM, Ziots, Edward <ezi...@lifespan.org> wrote: > Bad Arp cache entry for the laptop? **** > > ** ** > > Check the ARP value on the laptop as compared to what you have in your > router/switch. I have seen that in the past cause the issue you are talking > about. **** > > ** ** > > Z**** > > ** ** > > Edward Ziots**** > > CISSP, Security +, Network +**** > > Security Engineer**** > > Lifespan Organization**** > > ezi...@lifespan.org**** > > ** ** > > *From:* Bill Monicher [mailto:bmacd5...@gmail.com] > *Sent:* Thursday, April 26, 2012 4:10 PM > *To:* NT System Admin Issues > *Subject:* Unable to ping -- why?**** > > ** ** > > I have a single laptop in our department that I cannot ping.**** > > The user in question is able to access all network resources.**** > > Windows firewall is off, and no other firewall is running**** > > I have verified that all DHCP & DNS entries are correct.**** > > The user can ping anything on the network.**** > > **** > > Other symptoms:**** > > The machine loses connection to one server periodically.**** > > This is indicated by the fact that his computer shows the "offline" tray > icon.**** > > Any time this happens, he can choose "synchronize", and he always is back > online.**** > > He can access any internet/intranet site w/o problem at any time.**** > > **** > > Switch port counters show no problems.**** > > Changing switch port makes no difference.**** > > **** > > Any helpful suggestions appreciated.**** > > **** > > Regards,**** > > --BM**** > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to listmana...@lyris.sunbeltsoftware.com > with the body: unsubscribe ntsysadmin**** > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to listmana...@lyris.sunbeltsoftware.com > with the body: unsubscribe ntsysadmin > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin
