I've had this problem for a while now, and it's driving me nuts! IE, and almost everything else are able to connect to the internet on this PC which is connected to the ADSL router via LAN. However, some programs that have a "check for online updates" feature are not able to connect. Some programs on the other hand can, and I guess they use a different protocol.
I have disabled both software, and hardware firewalls etc. I run Iolo System Mechanic pro 7, and I think that may be the culprit, although that's just a hunch. I think it may have disabled something or another. I've been through all I can to make sure startup items are starting up, set internet settings from optimal to original settings and so on.
This is a problem I need to fix, as a lot of software now relies on it's own update checker, and doesn't provide a manual alternative, and apart from anything else, this situation is just bugging me!
Any help would be much appreciated.