Whenever I'm browsing or downloading , I'll randomly get these long spikes of no internet connectivity. It only happens in Ubuntu versions like Ubuntu,Xubuntu,Kubuntu and so on. Tried on arch and my internet was fine the whole day. What should I provide?
Wireless is influenced by many weird things, like the weather, your neighbor using his network, making a phonecall or using the microwave. You should exclude these factors and try different times without downloading on short distance. Maybe even change wireless channels.
Which drivers do you use for your wireless card on ubuntu? And on arch? Are you using a desktop pc or a laptop? In the latter make sure you test from exactly the same location.