Version:           unspecified (using KDE 4.7.0) 
OS:                Linux

When my WiFi Internet connection gets broke - i.e. the modem, which is connected by wire to wireless router, hangs, but i still have connection to the router itself - the plasma panel hangs and I cannot click nor hover anything on the panel, and it's not refreshing. The rest of Plasma seems to work fine, e.g. I can switch windows with Alt-Tab and I can use them normally.

Reproducible: Always

Steps to Reproduce:
1. Connect wire modem to wireless router
2. Connect to wireless router
3. Hang the modem (I don't know what it exactly means, but it causes 1 or 2 red lights to blink on the router)

Actual Results:  
Plasma panel hangs

Expected Results:  
Nothing