Mi424WR Power supply issues

I have a Actiontec Mi424WR router I bought to use as a switch in another room and as a wireless bridge .

I have used this setup successfully for over a year. The power supply burned out one day. So I had an old D-link router with the same rated 5 VDC 3A power supply and used it for 6 months when it burned out... I just recently bought a generic power supply and it works for 20 minutes then overheats ands shuts off....

Is this a common issue? Should I buy another power supply but an OEM one this time or am I wasting my time and the issue is the router?

I have also tried a different outlet with the same results...

Also I see no Revision indicated on the router so I assume its the first???? Maybe????


I am so frustrated as I am paying for Xbox live and netflix and can't use them.

Thank you so much for any help! Great Place!