Firewall logs with Local IP contacting local IP over the internet

I noticed some wierd behavior in our firewall logs: a computer in our subnet 192.168.1.0/24 sending UDP packets in port 161 to an IP in subnet 192.168.20.0 (we don’t have a subnet like that), and the packets going through the LAN to WAN policy. I have installed Sysmon in the computer that is creating this connection, but I don’t know what to look for in it. Does anybody in here have an idea of what is going on? I’m sorry if I’m not giving enough info. I don’t want to mess up giving too much details.

Internet not working on Firfox and Chromium, but works on Tor

I have problem with internet connection for Firefox and Chromium on Ubuntu. I tried few solution. One of them is My browsers can not connect to the internet while my Ubuntu is connected. But no one works.

Ping 8.8.8.8:

ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. 

Ping google.com:

ping https://www.google.com ping: unknown host https://www.google.com 

Any help regrading this will be appreciated.

Ubuntu 18 cannot connect to the Internet using eth network

I just installed Ubuntu in an old PC and I installed the Fog Server on it. For some reason, I made a mistake that I enabled the DHCP function, and I tried the way from other website to disable it. I did the following commands:

sudo dpkg --get-selections | grep dhcp     sudo apt-get remove isc-dhcp-client    sudo apt-get remove isc-dhcp-common    sudo apt-get remove isc-dhcp-server 

And when I run the commands

sudo dpkg --get-selections | grep dhcp     isc-dhcp-client     deinstall    isc-dhcp-server     deinstall 

And now I cannot connect to the Internet and even there is no connection icon in the menu of the upper right corner. I think remove that DHCP stuff caused this disconnection and wonder if there is any solutions to reinstall it.

The Ubuntu cannot connect to the Internet, but I got a Windows PC here to help.

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