Namecheap DDNS does not work in Asus Merlin (Tomato) Firmware until 384.7_2 | Rambling Nerd with a Plan
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19 Asus Routers Need Their Firmware Updated Immediately | PCMag
My ASUS RT-AX3000 router refuses to update firmware despite following every single step and troubleshooting option I have found. - Troubleshooting - Linus Tech Tips