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need info ..

toto

Occasional Visitor
Hi Guys
I have the asus ac66u and I loaded the Merlin 3.0.0.4.354.28 I have problem with the 5ghz ,,,I would like to try older versions can I downgrade the firmware
3.0.0.4.354.28 ?
please let me know if I can ,,,

regards
 
Hello,

Yes you can downgrade.
 
so without any problems , I am scare to brick it

I have flashed my router many times, downgraded and upgraded, with merlin builds and oficial firmware, even If you brick your router, I think you can recover it with the original Asus CD that came with it.

Mine is an Asus AC66U.
 
Had a problem with 5GHz. on my rt-n66u, too. Went back to 270.26b, and it works fine. Even had a nice saved settings for that firmware version.

These routers are virtually unbrickable *smile*. If the built-in firmware upgrade facility in the web GUI admin page doesn't work to upgrade firmware, you can use the Asus Rescue utility (get this from Asus download page, under utilities) to do your firmware upgrade. To use this utility, get your router into "recovery" mode by turning on the router power with the reset button pressed in, and hold the reset button after turning on the power until the power light blinks slowly...then your router is in "recovery" mode, and you can use the rescue utility.

Also remember to clear your nvram (which removes all your settings) and re-enter your settings after upgrading if you were having problems with the previous firmware (unless you already have a saved settings cfg file that was made when the router was working well with that firmware version *smile*, you can use that).

To clear your nvram, you can do one of these:

1. Press the WPS button, power up the router, and hold the WPS button for 10 seconds or so after powering the router up.

2. Log into the router using telnet at the router's admin address (192.168.1.1 by default), and issue this command:

mtd-erase -d nvram

then reboot the router and your settings will be cleared. There are other ways to clear the nvram as well, but these are the ones that I use *smile*.

It really is pretty easy stuff, and it is very hard to brick one of these routers.
 
Hi

may I ask what kind of problems you had with the 5 ghz ? I also have problems with that , I use the asus pce ac66u but keep dropping the speed , when the pc start goes to 1300 mbps but after a while drops to 800 and than 435 ,,,,the router is just 30 cm away from the pc ......
this make me crazy ,,,,,I spend to much money for nothing ...
 
There may have been transfer rate issues, not sure since my laptop was having problems re-connecting to the 5GHz. network waking up after sleeping. Just too many problems, that's why I went back to the previous firmware, it works well.

Remember though that I mentioned that I have an rt-n66u. The rt-ac66u is supposed to be pretty much okay with the latest firmware (354.28), although there are no guarantees. It is a beta and all.
 
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