Question 1

Why does something work for everyone else but not for you?

Accepted Answer

Because **your situation differs in a way neither of you can see** — and the differences are drawn from a short, predictable list, which makes this far more tractable than it feels.

**The usual causes, roughly in order:**

**Cached data.** Your browser or app is holding an old version — of the page, the stylesheet, the script or the DNS record. **A hard reload or a private window distinguishes this immediately**, and it is the single most common answer.

**Your account.** Permissions, roles, feature flags, subscription tier, or a setting changed long ago. **Services roll features out to a percentage of accounts**, so two people on the same version genuinely see different products.

**Your region.** Content licensing, feature availability, pricing, legal restrictions and language all vary by location, and are frequently not signposted.

**Your network.** A corporate proxy, a school or workplace filter, a VPN, a DNS-level blocker, or an ISP-level block — **which follows you across devices and is therefore easy to misattribute to the device.**

**Extensions and blockers**, which modify pages in ways the site never anticipated.

**Your version.** An older app or operating system, or an older browser lacking a required feature.

**Your device and settings** — screen size triggering a different layout, reduced motion, a font setting, storage full, a date set wrongly, or restricted permissions.

**Staged rollouts.** Software reaches users in waves, so "it's available now" and "I don't have it" are both true.

**The diagnostic sequence that identifies it:**

**Private window** — rules out cache, extensions and session.

**Different browser** — rules out browser-specific settings.

**Different network**, such as a phone hotspot — rules out filtering and DNS.

**Different account** on the same device — separates account from device.

**Your account on a different device** — separates account from device the other way.

**Those five tests, in that order**, isolate almost every instance of this — and they are worth doing before reporting it, because they are the first five things support will ask.

Question 2

Why does a website work in one browser but not another?

Accepted Answer

Because browsers are independent implementations of enormous standards, and the differences are usually in one of a handful of places. Extensions are the most common cause by far. Ad blockers,

Question 3

Why does my WiFi work on some devices but not others?

Accepted Answer

When most devices work and one does not, the network is fine and the difference lies in what that device supports or how it has been treated. Band support is the most common explanation. Older

Question 4

Why did an update break something that worked, and how do you roll back?

Accepted Answer

Because an update changes a component other things depend on — and the thing that breaks is frequently not the thing that was updated. Understanding that relationship explains both why it happens and

Question 5

How do you move everything to a new computer?

Accepted Answer

By separating data, applications, settings and licences — because they move by completely different mechanisms, and the migration tools that copy the first two frequently leave you unable to use the

Question 6

Why has my phone suddenly started overheating and draining fast?

Accepted Answer

Because something is running continuously that should not be — and the sudden onset is the useful clue, since hardware degrades gradually while software problems appear overnight. The most common

Question 7

Why does my document look different on someone else's computer?

Accepted Answer

Because a word processor document is a set of instructions for laying out text, not a picture of a page — and those instructions are interpreted using whatever the receiving computer actually has

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