On the web page of the model HG655b you have the calibration data of that model. They are very similar to those of the HG622 model. Use my procedure and maybe it works for you. Do not forget to change the MAC by which the sticker is printed, and change the last two characters. If it works, report it.
Did anyone played with the hardware of this router?
Is there any chance to upgrade RAM, Flash chips?
Thanks in advance!
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