Two computers can't access each other on network but a thirdcomputer can access both of them

On 6/25/2015 12:43 AM, Bobbyville wrote:
I recently got a new router (TP-Link TL-WR841ND v9) and installed dd-wrt
firmware on it. Everything is working fine except two of the computers
on the network can't communicate with each other but they can both
communicate with other computers on the network. For example, I have 3
computers named Desktop, Lappy, and media-center. Media-center and
Lappy are both running Windows 8.1, and Desktop is running Windows 7.
Before I got the new router, all these computes could share files and
remote desktop just fine with each other. Now Desktop and media-center
can't communicate at all with each other (they can't ping each other,
remote desktop, or share files) but Lappy can communicate with both of
these computers just fine. Any ideas?

As said address clash could be a cause.

However some times Windows 8 can be snooty, and some time discriminates
against some computers by not acknowledging they exist.

If by Communicate you mean share drives, determine the LAN address of
the computer that will not talk. On the Windows 8 computer go to the
Map Drives, and when it asked the location of the drive you wish to
connect add the numeric address of that drive. (ie, 192.168.01)

This is the only way I could get my windows 8.1 computers to find my
hard wired print server.