Sometimes but not often a yellow triangle with an exclamation mark appears on the network icon in the notification area. I then have no internet access although all LED lights are lit on my router (wired Ethernet connection).
The only way I’ve found to clear it is to turn off/on my pc and router.
I’ve read recent users’ posts on this and a suggestion that checking Scan traffic from well-known browser processes only in Web Shield Settings might resolve the issue. Presumably that reduces protection though.
and you are basing your statement on…? I didn’t even mention something about a specific case, or OS, or any specific conditions whatsoever.
I just mentioned several different paths that some users have been taking when something like what the OP sees was described in different topics.
The reasons and circumstances, OS, drivers, type of connection(s)… might be completely different.
So, whether your statement is somehow correct or not (and I haven’t read anything from Avast Software that would confirm nor deny it), has nothing to do with my post.
I had this issue too, however it is gone now, since I only installed avast!'s file shield on my clean OS install. I use Sandboxie Paid as my first line of defense while online, so for me, I only need the file shield. I don’t recommend to anyone else to just install the file shield, unless you have additional protection…Back on topic, it seems to me that either / both the web shield or network shield is the cause of the yellow ! on the tray icon.