TP-Link region-locks firmware. A US router will reject EU firmware with a “wrong image” error. Verify your region code on the bottom sticker (e.g., “Archer C5(EU) V4”). Download only matching files.
The Archer C5 V4 is a capable AC1200 router, but its firmware ecosystem is a minefield. Always triple-check hardware version, region, and flash size before clicking “Upgrade.” When in doubt, leave it on the working firmware—a stable router beats a bricked one. tp-link archer c5 v4 firmware download
If you own a TP-Link Archer C5 V4, you’ve likely discovered one crucial fact: TP-Link region-locks firmware