Recently I've noticed that one of my domestic devices (smartphone, laptop, pc) may lose its connection to the internet while other devices are still connected. It happens every day now. After a search on the web the most common cause seems to be a DHCP-related issue, most probably on router side as multiple devices are impacted. The solution given on the web is always to assign fixed IP address for the connections to that router. Ok but why ?
Why would DHCP fail that often ? There are at most 5 devices connected simultaneously on my network.
Edit: after a month doing different tests, here is what I got (device is Samsung Galaxy S7):
- using a static IP didn't help (-> DHCP is not to blame)
- going airplane mode then reconnect didn't help
- reboot smartphone didn't help
- forget + re-add the WiFi network seems to work: since I re-added the network, weeks ago, there is no more disconnection issue.