New router, now laptop ping times out

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Guest

I have two PCs and a laptop on a wireless home network. Everybody was
sharing files just fine until I got a new router, now the PCs can still share
between themselves but the laptop can't access the PC files nor vice versa.
When I ping the laptop from itself or another computer it times out. No
security changes have been made to the laptop, software- or otherwise, only
the router changed. I can access the Internet just fine from the laptop. I
can "see" the laptop computer name from the PCs but can't share its files
even though they are set to be shared. Before I fry my brain any
further....help? Any ideas on why this happened? Should I try to uninstall
and reinstall my wireless adapter, or is there some way I can reset the ip
address, or is there something I need to tweak on my router perhaps? I am
hesitant to try any of this without checking with someone more
experienced...I know just enough to be dangerous!! Thank you so much....Sandy
 
If you can't ping laptop self, I would check the firewall first.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I have two PCs and a laptop on a wireless home network. Everybody was
sharing files just fine until I got a new router, now the PCs can still share
between themselves but the laptop can't access the PC files nor vice versa.
When I ping the laptop from itself or another computer it times out. No
security changes have been made to the laptop, software- or otherwise, only
the router changed. I can access the Internet just fine from the laptop. I
can "see" the laptop computer name from the PCs but can't share its files
even though they are set to be shared. Before I fry my brain any
further....help? Any ideas on why this happened? Should I try to uninstall
and reinstall my wireless adapter, or is there some way I can reset the ip
address, or is there something I need to tweak on my router perhaps? I am
hesitant to try any of this without checking with someone more
experienced...I know just enough to be dangerous!! Thank you so much....Sandy
 
Well, that did it, thank you Robert!! (You're hardly surprised, right?!) I
had already shut off Windows Firewall but it took disabling Norton's as well.
Why would installing a new router make the firewall a problem, though, when
it wasn't before? Is it okay to leave this turned off, or should I only do
so when I want to access other files or printers? I'm just trying to learn
something here, but if it's too complicated, no problem...
 
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