I'm having problems updating the free version of AVG. I go to the update screen, click the button and the normal screen appears. It then takes ages to start to download if it starts at all, whereas it was almost finish straight after it started. Sometimes it says that it cannot find an Internet connection despite me also being able to browse at the same time. I have a network connection via a router if this helps. I believe AVG says that it should not be installed in anetwork environment but I hadn't had any problems before.
This problem exists on at least two of my computers connected to the network.
I'm not sure that this is just coincidence but.... I used to start the control centre by double-clicking the desktop icon. Following a tip on a similar thread a few months ago, I now always update by right-clicking the systray icon, 'run avg control centre', 'update manager', 'update now'. I have never had a problem doing it this way but always used to get problems if I started the control centre by double clicking the desktop icon (rather than going through the systray).
Not sure if this is at all relevant (and I can't explain it) but there you go... it seems to work (or I have just been lucky).
I have always updated from the systray icon, you don't need to R click just double click. Sometimes as with the last couple of days things have been very slow and difficult, it does get the update in the end. I think it is more likely to be a problem on their server than anything else.