interface is down but netstat still shows the connection established?
98137
Java detect lost connection
112201
ifconfig shows multiple network interfaces
11802
What does "fix network problems" actually do?
56921
How do I bridge network interfaces?
106146
Why do netcat scans for UDP ports always succeed?
6156
Java Networking "Connection Refused: Connect"
100018
Internet connection lost when I close fiddler
150495
No internet connection after ubuntu server 20.04 install, ifconfig not available
84146
How do I get the current bandwidth speed of an interface from the terminal?
149323
Ubuntu SSH connection hangs when I run ifconfig with IPv6 enabled
7519
Detect the Internet connection is offline?
30232
Ping IP returned "destination net unreachable", even with different network
142071
How to test the speed of my server inet connection?
94815
How do I get the network interface and its right IPv4 address?
128126
How do you determine if an interface is a physical LAN port on a Windows PC?
32068
How to increase ping time/network connection latency on Windows?
112301
Linux network troubleshooting and debugging