Sky BB Ireland with Asus RT-AX86U

[BrianLimerick]

I have been using Sky BB with Asus RT-AX86U perfectly well for the past few months. Using 

Yesterday, it started having problems. No config changes have been made on the router. Have done the usual full restart and double-checked all network cables. 

The network connection stays up for a few seconds, the I get "connection hang up" on the system log.

This is info from the router system log

May  5 06:08:15 pppd[1757]: Connected to 00:00:5e:00:01:73 via interface vlan10
May  5 06:08:15 pppd[1757]: Connect: ppp0 <--> vlan10
May  5 06:08:15 pppd[1757]: CHAP authentication succeeded
May  5 06:08:15 pppd[1757]: peer from calling number 00:00:5E:00:01:73 authorized
May  5 06:08:15 pppd[1757]: local  IP address 51.199.107.210
May  5 06:08:15 pppd[1757]: remote IP address 2.127.238.243
May  5 06:08:15 wan: finish adding multi routes
May  5 06:08:16 miniupnpd[3092]: shutting down MiniUPnPd
May  5 06:08:16 miniupnpd: it is advised to use network interface name instead of 192.168.0.1/255.255.255.0
May  5 06:08:16 miniupnpd[3282]: HTTP listening on port 40998
May  5 06:08:16 miniupnpd[3282]: Listening for NAT-PMP/PCP traffic on port 5351
May  5 06:08:16 rc_service: ip-up 3234:notify_rc stop_samba
May  5 06:08:16 Samba Server: smb daemon is stopped
May  5 06:08:17 rc_service: ip-up 3234:notify_rc start_samba
May  5 06:08:18 pppd[1757]: Connection terminated.
May  5 06:08:18 pppd[1757]: Modem hangup

and it loops around and around like this. A new local IP is assigned,  increasing the 4th octet by 1 each time

I rechecked all the settings 

- WAN Connection type: PPPoE

- Username: anything@skydsl

- Password: anything

- MTU: 1492

- VLAN ID 10

Also upgraded the router firmware (now it's 3.0.0.4.388_24243-g3b611ea)

Anyone else using a Asus router seeing this?

I have reverted to the old sky hub and everything seems to be working as expected

[BrianLimerick]

It seems the "Extend the TTL value" is required to be set to "Yes"

[olpal]

I also started experiencing these exact symptomps this morning with my ZenWiFi XT9.

Setting "Extend the TTL value" to Yes did NOT work for me.

What worked was setting "Enable VPN + DHCP Connection" to No. This fixed the connection issue.

I confirmed this was the issue by setting "Enable VPN + DHCP Connection" back to Yes afterwards, and the connection issues came back...no idea why all of a sudden this is an issue.