← Back to Fix My Wi-Fi
Fix My Wi-Fi — Help
Your privacy: this tool runs entirely on your own computer. Nothing is
uploaded and nothing is installed. You can open the downloaded file in Notepad
to read exactly what it does before running it.
How to run it
- On the main page, click Fix my internet. A small file named
FixMyWifi.cmd saves to your Downloads folder.
- Open your Downloads folder and double-click that file.
- Answer the permission boxes (see below).
- A report opens in your browser and is saved to your Desktop as
Internet-Repair-Report.html.
No internet? You can still get the file.
Download it on a phone or another computer and copy it across on a USB stick.
The tool itself does not need a working connection to run.
Why am I asked for permission twice?
Because two different Windows features are involved, and they are asking
different things.
- "Windows protected your PC" (a blue box) appears because the file is
free and unsigned. Click More info, then Run anyway. This is a
caution about where the file came from, not a virus warning.
- "Do you want to allow this app to make changes?" (a
blue-and-yellow box) appears only when repairs are actually needed. Repairing
Windows networking genuinely requires administrator permission. Click Yes.
If your connection turns out to be fine, the second box never appears at all,
because nothing needs changing.
Can I say No to the second box?
Yes. You will still get a full report of what is wrong, it just will not fix
anything.
It said to restart my PC
Two of the repairs (the Winsock reset and the TCP/IP reset) are only
partly applied until you restart. If your connection is still not right
after the tool finishes, restart your computer before trying anything else.
The report tells you honestly when this applies rather than claiming to be done.
What the repairs actually do
- Clear the DNS cache: makes Windows forget stale website addresses.
Completely harmless.
- Get a fresh address from the router: hands back your current network
address and asks for a new one. Fixes most "connected but no internet" faults.
- Reset the network software layer (Winsock): repairs damage left behind
by removed VPNs, proxies and antivirus tools.
- Reset the TCP/IP stack: returns Windows networking to its factory
settings.
- Restart the network adapter: switches your network hardware off and on
again. Only the physical adapter you are actually using — VPN and virtual
adapters are deliberately left alone.
- Re-register with the DNS server: harmless, and helps on office networks.
- Switch DNS to 1.1.1.1 (optional, off by default): replaces your current
DNS servers with a public service. Useful when names will not resolve, but it
changes a setting rather than restoring it, so you must opt in.
Is it safe on a work computer?
Be careful. On a company machine, a network reset can wipe settings your IT
department configured, such as a fixed IP address, specific DNS servers, or a
proxy.
The tool checks for all three and warns you in the report before and after
running. If you see those warnings, or the tool says your PC is joined to a
company domain, speak to your IT department first.
Nothing happened when I double-clicked
- Check your Desktop for
Internet-Repair-Report.html — the report may have
opened behind other windows.
- If a black window flashed and closed, the tool ran and finished. Look for the
report on your Desktop.
- If your workplace computer is locked down by an IT department, it may block
the file entirely. That is a policy on your PC, not a problem with the tool.
It still says I have no internet
The report lists specific next steps based on what it found. The two that fix
most remaining cases:
- Restart your computer, if the report asked you to.
- Restart your router: unplug it, wait 30 seconds, plug it back in, and
wait 2 minutes.
A quick way to tell where the fault lies: if other devices in your home also have
no internet, the problem is your router or your provider, not this PC.
← Back to Fix My Wi-Fi