Post actualizado el día octubre 25, 2026 by DeiviSanzPlay
When WiFi stops connecting on your phone, the usual reaction is to restart the router and wait. That move solves fewer cases than it seems. Most of the failures that reach the user have to do with the phone itself: corrupted saved profiles, exhausted DHCP, poorly managed 2.4 and 5 GHz bands, or battery saving that turns off the chip while idle. Before switching carriers, it’s worth distinguishing which type of solution fits each scenario.
How to compare solutions according to the symptom
Not all alternatives serve the same purpose. This classification helps you rule them out quickly:
1. Forget and reconnect the network
It’s the cheapest option and the one that fixes the problem most often. It deletes the saved profile, including the password, and forces a new exchange with the router. It works when the phone shows «connected, no internet» or gets stuck on «obtaining IP address.» It doesn’t help if the failure appears only in a specific room, because there the problem is coverage, not credentials.
2. Static IP vs. automatic DHCP
Useful on networks with many devices. The router hands out addresses from a limited range and, if it fills up (typical in flats with home automation, consoles, and visitors), the phone is left out. Assigning a fixed IP outside the DHCP range avoids the conflict. It must be done carefully: a poorly chosen IP clashes with another device and the failure becomes intermittent, an error I’ve seen repeated on small networks.
3. Separate 2.4 GHz and 5 GHz bands
Many modern routers unify both bands under the same name. Some older phones don’t negotiate that change well and keep trying to connect to 5 GHz from the living room, where that band doesn’t reach. Separating the SSIDs with different names lets you manually choose the 2.4 GHz one when there’s distance. The trade-off: you lose the convenience of automatic roaming between bands.
4. Repeater or mesh system
If the phone connects next to the router but not in the bedroom, the solution isn’t on the phone. A basic repeater duplicates the signal at the cost of losing speed, while a mesh kit with dedicated backhaul maintains performance. According to network manufacturers’ documentation, the middle ground usually falls in homes of more than 90 m² with thick walls.
5. Change carrier or upgrade your plan
It’s the most expensive option and the one that fixes internal failures the least. It only makes sense when the problem is coverage in the area or an old router that the carrier doesn’t update. Before signing up, it’s worth checking with another device whether the WiFi fails the same way: if the second phone connects without issue, the carrier isn’t to blame.
A case that keeps recurring and almost nobody checks
On Android, aggressive battery saving in some manufacturer skins disconnects WiFi in the background. The user sees the network «drop» when the screen locks and blames the router. Checking the battery optimization section for the specific app solves more cases than expected. On iPhone, a forgotten enterprise configuration profile can force a proxy that breaks the home connection.
None of these alternatives guarantees 100% results: a router with outdated firmware or a WiFi modem damaged by a power surge can’t be fixed from the phone. In those cases, replacing the equipment is the realistic path.
