These articles explain the technology behind online calls and messaging and walk through fixes for common problems. They are written for anyone, whether or not you use ChatLite, and each one lists the official documentation it was checked against.
Step-by-step help for Google Chrome on Windows, Mac and Android: answer the permission prompt, change the setting for one site, set defaults for all sites, undo a Block, and find out when the problem is outside Chrome.
Where Safari keeps camera and microphone permissions on macOS, iPhone and iPad, how Ask, Deny and Allow differ, how to fix one website, and what to check when Safari seems to ignore your choice.
How to answer the permission prompt, unblock a website and review saved choices in Microsoft Edge and Mozilla Firefox, including the Windows setting that can block both browsers and the differences between the two.
Where Windows 11, Windows 10 and macOS keep the switches that let a browser use the camera, microphone and screen recording, what each switch is called, and how to tell a system block from a browser block.
What the errors "camera in use", NotReadableError and Windows error 0xA00F4243 mean, how to find the program that holds your webcam or microphone, and the fixes for Windows, macOS and phones.
Why chat and web pages load on an office or campus network while video calls do not connect: blocked UDP, proxies, filters and device policies, how to test it, and what to ask your network administrator for.
A non-technical explanation of NAT, STUN, TURN and ICE: why two browsers cannot always connect directly, what each piece does, what host, srflx and relay candidates are, and what it all means for video calls.
How a VPN, a proxy or a privacy extension changes video calls, why WebRTC can reveal more addresses than a normal website sees, what the standard says about it, and how to test your own setup without guessing.
A clear comparison of encryption in transit (TLS/HTTPS), end-to-end encryption and the encryption built into WebRTC calls: who can read what, what each protects against, and how to judge a messaging service's claims.
What a browser keeps on a computer you share (cookies, site data, cache, history, saved passwords, permissions), how to use private windows, and step-by-step ways to clear it in Chrome, Edge, Firefox and Safari on computers and phones.
A practical comparison of the three ways to send a big file: direct browser-to-browser (P2P) transfer, a cloud storage link and an email attachment, with the pros, cons, size limits and privacy implications of each.
A plain explanation of progressive web apps (PWAs), what they can and cannot do compared with store apps, and step-by-step ways to install and uninstall them in Chrome, Edge, Safari on Mac and iPhone, Android and Firefox.
Menu names and settings change between browser and operating system versions. Each article says which documentation it was checked against and when.
Reviewed against ChatLite's current behavior on .