Asus RT-AC88U WAN/PPPoE woes.

LFluff

Commendable
May 20, 2016
3
0
1,510
Hey guys, I recently acquired a new router: an Asus RT-AC88U,

I have a cable ADSL modem which connects directly to my PC, the modem is actually a modem/router combo with a single LAN.

I had successfully configured the modem to run on bridge mode, confirmed this via setting up a PPPoE connection on my PC, and after keying in the credentials (username and password), I am connected. This doesn't take more than a minute.

Now onto the router, for the life of me I can't get it to detect my internet connection. Set up goes something like:


    1) Connect router and PC, change admin password.
    2) Skip wizard to change IP address as both router and modem have the same default address.

    Modem IP: 192.168.1.1
    Router IP: 192.168.1.45

    3) Go into wizard to set up connection, select PPPoE mode, automatic IP.
    4) Plug ethernet cable from modem LAN into router WAN, key in ISP credentials.
    5)Router attempts to detect connection but fails. "Detecting connection timed out"

The router will continue dialing every minute or so, but to no avail. On the router's log the would be an error "Timeout waiting for PADO packets".

The internet light on the modem and router remain off. On the WAN page of the router, it says DHCP lease has expired. I am able to ping my router but not the modem,

I've tried reaching out to ASUS reps on a local support forum but they've been slow to respond but a little helpful nevertheless (they pointed out I have to turn my modem to bridge mode).

Things I have attempted so far:


    i) Updating firmware, currently have the latest, stable global version
    ii) Power cycling both devices, restarting PC
    iii) Cloned my PC's MAC address, but as my ISP doesn't register devices, I don't think it is an issue.
    iv)Tried different cables.


Again after all this, connecting my PC directly to the modem seems to work. I found a potential solution which involves trying a cross cable in this case but I am not too sure since the OP didn't respond.

I have the weekend to have this sorted and after dropping this much $ on a router I didn't think it would be this frustrating :S. I'm not sure if I'm missing something here. Wifi from the router works with no issues.

Please advise, regards.

 
Solution
Turn off the aggressive mode in WAN page, from what I hear some ISP's will end up blacklisting(temp) the MAC address after a bit from too many requests. Aggressive mode just sends DHCP requests faster to ISP.

I had issues with my asus router where it would take 15 minutes for DHCP to work, really annoying, not any problems since switching off the aggressive mode.

LFluff

Commendable
May 20, 2016
3
0
1,510


Same thing, tried different subnets and still won't work. Something like 192.168.2.1

Have been away for work but yeah, I still have time to return this.
 

DeadlyDays

Honorable
Mar 29, 2013
379
0
10,960
Turn off the aggressive mode in WAN page, from what I hear some ISP's will end up blacklisting(temp) the MAC address after a bit from too many requests. Aggressive mode just sends DHCP requests faster to ISP.

I had issues with my asus router where it would take 15 minutes for DHCP to work, really annoying, not any problems since switching off the aggressive mode.
 
Solution

LFluff

Commendable
May 20, 2016
3
0
1,510


This worked! Thank you, I completely missed this setting.