I can not excess via the desktop with ubuntu os. Possibly can excess with laptop with windows os. Just the laptop is slower than the desktop thus I hate to use it.
You said you put aside the project with the switch, so now how do you have the laptop and desktop connected to the modem? Are you swapping the ethernet between the desktop and laptop and power cycling the modem each time?
If you have the desktop connected directly to the CM400 and still can't get online, what error are you getting? What version of Ubuntu are you using? What IP info are you getting? See here to find how.
I am not using the laptop just the desktop.
I can get on line. I just can not get to the last thread on planted tank that I was writing on. Using desktop with ubuntu 16.04
Did understand how to pull up the windows suggested so I used the terminal to find the info
Info, which I do not understand, is
eth0 Link encap:Ethernet HWaddr 00:00:00:00:0b:06
inet addr:220.127.116.11 Bcast:18.104.22.168 Mask:255.255.254.0
inet6 addr: 2001:558:6011:7e:5533:13f:449f:9c3b/128 Scope:Global
inet6 addr: fe80::a5a5:1189:cd35:c119/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17315 errors:0 dropped:0 overruns:0 frame:0
TX packets:14639 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:12810473 (12.8 MB) TX bytes:2131169 (2.1 MB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:2128 errors:0 dropped:0 overruns:0 frame:0
TX packets:2128 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:216888 (216.8 KB) TX bytes:216888 (216.8 KB)
Edited by ReneeIII, 27 August 2016 - 07:14 PM.