Building density, distance from mast, and network congestion all conspire against your SIM data in Isashi. Here’s what’s actually happening, and the fixed-line fix.
Mobile towers serve everyone in range at once, so peak-hour congestion, physical obstructions, and distance from the nearest mast all degrade your signal unpredictably. A fixed wireless or fiber-mile connection routes around those problems entirely, giving you a dedicated path instead of a shared, congested one.