I see the only holes on the PCB that could be a serial port, but at this point I am going to give up on this product and await word or firmware from TPLink before even considering buying another...

I've tried flashing backward, looks like major changes to the prom layout prevent downgrading to original firmware....the only stable version of firmware for this device. I am stuck with the latest...

update: you cannot downgrade back to the original firmware version TL-ER604W_V1_130116 from 2013 as I suspected. I tried and it failed. Unless TPLink has more firmware to try, I am walking away from...

Yes. I've been working with open source firmware for routers since before ddwrt and sveasoft project and tried every trick flashing the firmware In case that was the solution. I give up. The last two...

Lasted 3 days uptime and again same pattern. Traffic gets slower and slower as per speakeasy speedtest, comcast speedtest, etc. Some webpages don't load completely. Power cycle router and all is...

The original first version of firmware was stable for me too for at least 30 days in a row but as soon as I upgraded to the new firmware, it needs constant power cycles after days of use. This is...