<Help Needed> AC88U - WAP issues (Connected but no internet connections)

[Jevon]

Hi All,
Apologies if this has been addressed in other threads before. I am unable to find a solution and it is getting more frequent.

Background:
I have three routers and 1 ISP modem setup.
Purpose is to enhance wireless connection in two different areas which are blocked by awkward walls.

1) ISP Fibre Cable Modem, connected to main router ASUS - AC88U, set fixed IP 192.168.1.1 (DHCP enabled), DHCP range 192.168.1.10 to 192.168.1.254 (to avoid any conflict)
2) 2WIRE (ISP Router), connected (lan to lan), disabled DHCP, set fixed IP 192.168.1.2 - to act as secondary "WAP"
3) Pace (2WIRE) 5012V, connected (lan to lan), disabled DHCP, set fixed IP 192.168.1.3 - to act as secondary "WAP"

However, i am facing issues for the two connected 2Wire routers (wireless signal strength is full in those areas and once connected, there will be issues "no internet connection" for the devices connected. I can get past these by either restarting the Routers, or removing the lan cable and re-attaching to the two 2WIRE routers ("WAP"). But this is not feasible as the issue is getting more and more frequent.

I had tried to troubleshoot in all directions (upgraded firmware (Merlin), disabled QOS, disabled NAT Acceleration) but to no avail. I am stucked and need urgent help.

I had got this ASUS AC88U last weekend (approx. one week's old) and am really disappointed.

Previously - I had my 2WIRE ISP Router as the main Router connected to the modem, and Pace (2WIRE) 5012V set in similar configuration as above, but does not have any of such issues.

The biggest area I am suspecting is that either it is DOUBLE NAT (but using cmd tracert 8.8.8.8 and WAN does not show so. Another area I am suspecting is the NAT Acceleration of CTF could be conflicting with QOS, but QOS is switched off and the problem persist.

Please help. Im at wit's end.

Thanks.
Jevon

 

[CaptainSTX]

Hi All,
Apologies if this has been addressed in other threads before. I am unable to find a solution and it is getting more frequent.

Background:
I have three routers and 1 ISP modem setup.
Purpose is to enhance wireless connection in two different areas which are blocked by awkward walls.

1) ISP Fibre Cable Modem, connected to main router ASUS - AC88U, set fixed IP 192.168.1.1 (DHCP enabled), DHCP range 192.168.1.10 to 192.168.1.254 (to avoid any conflict)
2) 2WIRE (ISP Router), connected (lan to lan), disabled DHCP, set fixed IP 192.168.1.2 - to act as secondary "WAP"
3) Pace (2WIRE) 5012V, connected (lan to lan), disabled DHCP, set fixed IP 192.168.1.3 - to act as secondary "WAP"

However, i am facing issues for the two connected 2Wire routers (wireless signal strength is full in those areas and once connected, there will be issues "no internet connection" for the devices connected. I can get past these by either restarting the Routers, or removing the lan cable and re-attaching to the two 2WIRE routers ("WAP"). But this is not feasible as the issue is getting more and more frequent.

I had tried to troubleshoot in all directions (upgraded firmware (Merlin), disabled QOS, disabled NAT Acceleration) but to no avail. I am stucked and need urgent help.

I had got this ASUS AC88U last weekend (approx. one week's old) and am really disappointed.

Previously - I had my 2WIRE ISP Router as the main Router connected to the modem, and Pace (2WIRE) 5012V set in similar configuration as above, but does not have any of such issues.

The biggest area I am suspecting is that either it is DOUBLE NAT (but using cmd tracert 8.8.8.8 and WAN does not show so. Another area I am suspecting is the NAT Acceleration of CTF could be conflicting with QOS, but QOS is switched off and the problem persist.

Please help. Im at wit's end.

Thanks.
Jevon

Your setup looks spot on and the it would appear that the problem is with a setting on the ASUS. Just to confirm this try using the 2wire as a router and the Pace as an AP. If that works try reversing the setup and use the Pace as a router and the 2 wire as an AP. If no problems then I would suggest that you factory reset the ASUS and manually reset only the very basic features such as the SSID to get it working and test again. You didn't say how you are assigning the static IPs to the APs. For the purpose of this test set the WAN IP assignment as automatic and let the ASUS assign the AP. If the test works then use the ASUS to assign the static IPs instead of assigning them using the firmware of the 2 Wire and the Pace.

 

[yk101]

I have a similar setup with AC88U (RMerlin's firmware) as the main router. The other two routers are set to AP mode with DNCP disabled and have static IP assigned. Backhaul connections are via CAT7 cable. No issues whatsoever! Seems that your issue may be related to a keep-alive setting on your AP units. Am I understanding correctly that initially everything works (either after restarting the APs or re-establishing the wire connection), and sometime later you no longer have WAN connectivity when connected to AP?