Find the problem
Start from the symptom
Eight real problems, each answered as a short walkthrough: open a tool, run a check, read the result - and learn which side the problem is on. No invented drama, no promised miracles: every page ends with what you now know, because that is what an honest tool can give you.
Wi-Fi connected but no internet?
Three checks split the blame: your Wi-Fi, the line, or DNS.
Is the website down, or is it just me?
Ask the internet directly instead of a status site.
Can't open your router's settings page?
Four look-alike causes, told apart by two ports.
High ping but fast internet?
Speed and latency answer two different questions.
"Certificate not trusted" on iPhone?
The warning has a name - find it, don't tap through it.
Am I behind CGNAT or Large-Scale NAT?
Is your public address really yours? Two addresses settle it.
What DNS am I using, and is it the problem?
One tap shows your servers; one lookup tests them.
5G with full bars but slow?
Which 5G you really have, and whether the cell is crowded.
Step-by-step guides for one job, such as waking a gaming PC for Moonlight, are in Guides.
Every walkthrough runs in Radien - ten network tools, entirely on your iPhone.
