My network consists of a modem which is connected to the router Buffalo WHR-HP-G54 (DD-WRT v24-sp2) where the signal is transmitted over the powerline adapters (D-Link DHP501-AV) to my Desktop PC (Ubuntu 14.04 LTS).
Ethernet over Power (EoP) problem
Layer-1 is working correctly. I successfully connected my PC to the router directly via RJ45 on the wired port. Pinging speed was 5x faster in connecting to the BUffalo router than to my modem. So the problem is in the EoP, and not probably in the router configuration.
Wiring of the house
The wired connection works with the previous modem but not with the current. There is only the house wiring now between my router and my PC, minimizing the effect of other cables. It may be the case that the power of the signal has different in the new modem, so interfering somehow the wired connection.
I have these Services in the router:
DHCP Server Enabled WRT-radauth Disabled WRT-rflow Disabled MAC-upd Disabled CIFS Automount Disabled Sputnik Agent Disabled
Settings about IP addresses managed by DHCP
% Automatic DHCP so not known exact handled IP range WAN IP 192.168.1.39 LAN IP 192.168.2.1 Start IP address 192.168.2.100 % so I think the range is ***.1 - ***.100 Advanced routing > Operating mode > Gateway % I am not sure about this: other options Router, OLSR router, RIP2 router, BGP Port setup: WAN assignment vlan1 where everything *default* and not unbridged
I can detect the network in my Ubuntu 14.01 but the system cannot establish internet connection in the wired connection. In Buffalo's wireless connection, the internet connection can then again be reached but not in the wired. I do not understand this.
ping google.com gives ping: sendmsg: Network is unreachable in the wired connection.
traceroute google.com gives nothing in the wired connection.
My wired connection has worked always before through the powerline adapter. We changed the modem some months ago which caused now the first problem. It may be the reason but I do not understand why.
cat /etc/resolv.conf gives in the Desktop PC with Ubuntu 14.04 LTS:
# Dynamic resolv.conf(5) file for glibc resolve(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND - - YOUR CHANGES WILL BE OVERWRITTEN
I have only basic settings in wireless connection:
I have not changed anything such that the wireless would be connected to a different subnet so it should not be the case.
Why you cannot reach the internet connection in the wired network of Powerline adapters?