Score:1

Why are some applications able to reach the network and others are not?

us flag

On a Dell XP 9310 with Ubuntu 20.04 installed, I am seeing an intermittent issue where the network seems to drop for only certain applications. The only way to restore it (that I have figured out thus far) is to restart the computer.

I primarily use Brave as the browser, and Evolution as my email client. This works well most of the time. I noticed that suddenly webpages wont respond and Email will show as being disconnected. This also seems to affect NextCloud and MS Teams. If I try to ping, wget, curl, etc. something using Terminal, it's working. If I use Firefox, it's also working.

If I restart the computer, it will be working for a while.

There is no AV or firewall currently installed (didn't get that far).

This affects both wired and wireless connections the same way.

I am really at a loss for what could be different about Firefox and some of the other applications. The only think I can think of is that the applications affected are all installed after the OS was setup, whereas Firefox and the terminal utilities are native and came installed with Ubuntu.

waltinator avatar
it flag
Look at the logs! `sudo journalctl -b 0 -u NetworkManager`. Read `man journalctl`. If you're connected via Wireless, check your MTU with `ip link` or `ip l | grep $(ip r | awk '/default/ {print $5}' ) | awk '{print $2, $4, $5}'` it should be 1492, not 1500
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