Wasn't sure where to put this as the Troubleshooting forum is now "old", but...

If I'm using wlan/wi-fi on the N900, it continually gets stuck on the "Checking For Updates" dialogue box of the Applications Manager.

The device hasn't crashed, I can run other applications fine.

The Wi-Fi connection is fine too as I can surf the web on the same device, use Skype etc.

AFAIK the problem is entirely confined to the Application Manager. It just carries on checking for updates, and eventually times out. I've only had this device a couple of days now, but I have never managed to get the Application Manager to update through wi-fi.

If I switch the connection to cellular (either 3G or EDGE) I can use the App Manager without any problems.

This has me scratching my head, the wi-fi works for everything else, the App Manager works on cellular, so why does the App Manager + Wi-Fi cause problems?

Has anyone come across this? I tried searching and found somewhat similar reports, but not to do with the app manager.