Cannot access LAN Printer

Mehdi Anis asked:


I have a Brother 7360N Network Printer connected to a TPLINK Router over an Ethernet cable.

My desktop, running Windows 8 is connected to the TPLINK Router over an Ethernet cable. A ROKU device is connected over Ethernet.

The TPLINK Router is setup as “Client Bridge (Routed)” wirelessly connected to my other router, a Linksys 3000. Both routers are on DD-WRT. This Linksys router is connected to ISP’s Cable Modem and DHCP is enabled. I have also hard-coded some PC and Brother’s MAC address to fixed IP address. Two laptops are connected to Linksys wirelessly.

A Physical Windows2008R2 Server connected to Linksys through CAT-5. This server hosts multiple Hyper-V machines including a Windows2003 Virtual PC which is a Domain Controller running DNS.

Network diagram


From my Windows 8 desktop I cannot ping or access the Brother printer, neither ping ROKU. Whereas I can ping Brother printer and access its website from W2K8 Physical machine, any virtual machine and the two laptops.

If I disable Windows 8’s Network card, plug in a USB WiFi Dongle, connect to Linksys, I can ping Brother, access its website, ping Roku all works fine. I just cannot ping/connect to the Brother printer from desktop when connected to TPLINK through Cat-5. Both Brother and desktop connected to same TPLINK and they can’t see each other.

I connected one of the laptop to the TPLINK using a CAT-5, turned off WiFi, and can’t ping/access website of the printer. Neither it can ping the Win8 PC which is also connected to TPLINK. Win8 Machine can’t see the laptop. So the TPLINK is the problem, somehow. TPLINK cannot connect to it’s own devices to each other. Anything connected to Linksys can see the printer, Win8 machine and the Laptop. Any idea?

Route Print:

Interface List
 21...d0 27 88 d2 b7 13 ......Realtek RTL8168D/8111D Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)
 16...00 50 56 c0 00 01 ......VMware Virtual Ethernet Adapter for VMnet1
 18...00 50 56 c0 00 08 ......VMware Virtual Ethernet Adapter for VMnet8
  1...........................Software Loopback Interface 1
 15...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
 17...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
 14...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
 19...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3

IPv4 Route Table
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
     20         On-link    306         On-link    306         On-link    306         On-link    276         On-link    276         On-link    276         On-link    276         On-link    276         On-link    276         On-link    276         On-link    276         On-link    276         On-link    306         On-link    276         On-link    276         On-link    276         On-link    306         On-link    276         On-link    276         On-link    276
Persistent Routes:

IPv6 Route Table
Active Routes:
 If Metric Network Destination      Gateway
  1    306 ::1/128                  On-link
 16    276 fe80::/64                On-link
 18    276 fe80::/64                On-link
 21    276 fe80::/64                On-link
 16    276 fe80::1463:818a:9fd1:8547/128
 18    276 fe80::9899:1b44:c0de:37a/128
 21    276 fe80::f0e2:8da7:e9c5:f122/128
  1    306 ff00::/8                 On-link
 16    276 ff00::/8                 On-link
 18    276 ff00::/8                 On-link
 21    276 ff00::/8                 On-link
Persistent Routes:

My answer:

I suspect:

  • Bad switch port on the TP-LINK
    • Or you put the Windows 8 box in a wrong VLAN by mistake
  • Bad Cat-5 cable
  • Bad NIC in the desktop machine
    • Or a problem with the NIC drivers

Since you’ve updated your question, I’ll update my answer:

  • The TP-LINK is pretty clearly the cause of the problem here. I would reset it to stock settings and reconfigure the wireless client bridge. I presume you are running an alternate firmware such as DD-WRT, as the OEM firmware doesn’t support client bridge.

View the full question and any other answers on Server Fault.

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