Well after trying numerous combinations of port*vlans and vlan*ports settings, still no luck.
AC88U may have to wait until the GUI VLAN interface is fixed. As it is, if you need VLAN support, I'm not sure I'd recommend this router for DD-WRT duty.
Going to try a few additional things.
EDIT: finally got 802.1q VLANs working via nvram manipulation after many hours of raw trial-and-error, using one of the LAN ports (LAN port 3, identified by the nvram variable as "port1vlans" and as port "1" in the vlan*ports variables).
Annoying, but functional.
No attempt to modify the VLANs GUI page worked, and all such attempts resulted in lockups without fail.
Well after trying numerous combinations of port*vlans and vlan*ports settings, still no luck.
AC88U may have to wait until the GUI VLAN interface is fixed. As it is, if you need VLAN support, I'm not sure I'd recommend this router for DD-WRT duty.
Going to try a few additional things.
EDIT: finally got 802.1q VLANs working via nvram manipulation after many hours of raw trial-and-error, using one of the LAN ports (LAN port 3, identified by the nvram variable as "port1vlans" and as port "1" in the vlan*ports variables).
Annoying, but functional.
No attempt to modify the VLANs GUI page worked, and all such attempts resulted in lockups without fail.
Hi,
Please, in case I need to use LAN for wired internet from WAN all 8 ports are working?
Posted: Sun Mar 12, 2017 18:56 Post subject: AC3100 DD-WRT failure
I had painful experience with this routers DD-WRT. I have flashed 3 other routers (cheap ones) so that I can use them as WIFI client adapters for my VoIP, Printers, etc.
For this new AC 3100, I was able to flash to DD-WRT, but I got horrible signal : signal quality used to be 75% with stock firmware, now 44%. And worse yet, I get much slower wifi speed, even if I turn x Power to 999mw. In addition, the leds are useless -- WAN led was red but I still can connect to internet.
So decided to revert back to ASUS stock firmware - it was absolutely painful.
First, you can not just use firmware upgrade from the DD-WRT GUI -- it always goes back to DD-WRT even though it says successfully upgraded (with Asus stock firmware).
After much searching, I found this site and sure enough I am not alone. I downloaded ASUS firmware restoration tool, but only found the LAN ports do not connect. Then tried to install a different version of the DD-WRT -- success!
However with this version of DD-WRT firmware in recovery mode, while uploading the stock firmware, at 100%, it says "fail to Recover the System".
In desperation, I tried to switch to another version of DD-WRT (July 25 2016 version). Success and now leds seemed to correct except WAN led is off. It was not able to get an IP address from DHCP. After configuring a static IP 192.168.200.20 (AC3100 WAN is connected to my main router), the WAN led becomes red (was off) - so still refused to join the network.
Fortunately after some 30-30-30 reset, I was able to get LAN working somehow, so quickly connected to recover utility and successfully uploaded ASUS stock firmware, and recovered successfully!!!
Lessons learned -- for a sophisticated router like AC3100, don't mess with DD-WRT. There are too many router details of this router for the DD-WRT community to get this right in any time soon! I would stay away from DD-WRT for any expensive routers.
I was able to get VLANs working on this router, but the order of the ports remained switched around on the version I'm using (build 30471) and it took a fair amount of nvram programming. Any attempt to modify things on the VLAN tag resulted in a router lockup, necessitating a reset to default settings.
I have it running as an access point.
The settings below resulted in LAN port 3 being the trunked port for VLANs 1, 3, 4, 5, 6, 7, and 8.
VLAN 2 is unused; it seems to serve a purpose internal to the router.
VLANs 6-8 are wishful thinking at this point, as DD-WRT doesn't seem to allow one to create more than 4 BSSIDs per band, and I'm using both 2.4 and 5 GHz bands for each BSSID.
Yes, I have a unit with cfe 1.0.3.9. If flashed the first dd-wrt build on it but the newest ones are too big.
So this weekend I tried the kong build for the r8500 and it installed fine. Today I flashed the rt-ac5300 build from Kong and it works.
On my rt-ac3100 that is. _________________ I am far from a guru, I'm barely a novice.
Chances are great you will get a unit with a cfe that prevents any dd-wrt from going on it. and if by chance you get a unit like mine that allows dd-wrt, forget about using the firmware from the past few months.
The files keep getting larger and larger every release, preventing them from being flashed.
The issue has been raised but I wouldn't count on anything being done about it. _________________ I am far from a guru, I'm barely a novice.
Chances are great you will get a unit with a cfe that prevents any dd-wrt from going on it. and if by chance you get a unit like mine that allows dd-wrt, forget about using the firmware from the past few months.
The files keep getting larger and larger every release, preventing them from being flashed.
The issue has been raised but I wouldn't count on anything being done about it.
1. CFE? not sure what it stands for...
How can i tell it its possible or not? SN or something?
2. Larger DD-WRT is getting larger and RT88 has some limited space for FW?
3.So only chances to get most of it (if DD WRT wont work) use merlin or Tomato?
Merlin. I'm not sure it's supported by tomato firmware.
If you flash Merlin on it, under tools it should say what the bootloader (cfe) version is.
Mine is 1.0.3.9, which accepts dd-wrt. Newer units have version 3.0. something. I don't remember exactly.
If you google it, you should be able to find posts describing the issue.
I just wanted to give a huge thanks for those who developed this firmware. I was using Merlin before but whenever I activated a virtual machine on my NAS everything would go haywire.
I decided to try this firmware before giving up on my 3100 and it works like a charm. No issues and everything works great. Good connectivity and good speeds.
Cheers!