I have faced the issue when connecting to CentOS Server or Ubuntu Server using putty thrown error “PuTTY Fatal Error:Network error: Connection timed out” on Ubuntu and CentOS which are virtual machines installed on VMWare.
Solution PuTTY Fatal Error Network error: Connection timed out on Ubuntu:
Connect to Ubuntu server and open terminal and run the following command.
sudo apt-get install openssh-server
Then, open new putty and try to connect to the Ubuntu Machine.
Solution PuTTY Fatal Error Network error: Connection timed out on CentOS:
1. Connect to the CentOS Server and open the terminal
2. Switch to root user.
su
3. Run the command “dhclient -v”
[root@localhost r2schools]# dhclient -v Internet Systems Consortium DHCP Client 4.2.5 Copyright 2004-2013 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/virbr0-nic/52:54:00:92:4f:5e Sending on LPF/virbr0-nic/52:54:00:92:4f:5e Listening on LPF/virbr0/52:54:00:92:4f:5e Sending on LPF/virbr0/52:54:00:92:4f:5e Listening on LPF/ens33/00:0c:29:02:a3:67 Sending on LPF/ens33/00:0c:29:02:a3:67 Sending on Socket/fallback DHCPDISCOVER on virbr0-nic to 255.255.255.255 port 67 interval 4 (xid=0x15946497) DHCPDISCOVER on virbr0 to 255.255.255.255 port 67 interval 8 (xid=0x3568c98a) DHCPDISCOVER on ens33 to 255.255.255.255 port 67 interval 6 (xid=0x4031d47a) DHCPREQUEST on ens33 to 255.255.255.255 port 67 (xid=0x4031d47a) DHCPOFFER from 192.168.152.254 DHCPACK from 192.168.152.254 (xid=0x4031d47a) bound to 192.168.152.130 -- renewal in 786 seconds.
Then, open new putty and try to connect to the CentOS Machine.