I have a Raspberry Pi 2 B. I have had it for sometime now. I runs pretty much 24/7. However I have noticed that the WiFi times every so often when i sent a ping to it.
I have done the following troubleshoots:
- 1. I have tried a separate dongle
2. adding SSID info manually sudo nano /etc/network/interfaces
3. Connecting via Ethernet works fine, in fact having that connected the wifi part of it does not time out as they are both on different IP addresses