Over the past few months I regularly cannot connect to anything on the internet for a minute or so. It resolves itself but then happens a few minutes later. My suspicion is there is a DNS issue based on the browser error messages. This happens across multiple people on multiple devices. I am unsure if it is our wireless modem or Vodafone. 

Before I launch into investigating the issue I wonder if others are having the same issue? I started investigating last night but then realised I have munted my laptop and have no diagnostic tools from a terminal. I will fix that first tonight.

Vodafone cable modem, name is something color.