This topic

WAN IP Issue

Gussie1 — Sat, 21 May 2022 11:55:04 GMT

Hi,

Longtime user of BT Infinity 1 FTTC service here - 3 years plus. I use an Openreach Huawei EchoLife Hg612 2b modem and ASUS RT-AC66U Router. (Also have access to an Openreach ECI modem and ASUS RT-AC68U router).
I power off my kit when I am away and when I'm back I power back on and I can see the router receiving a new WAN IP address within a few seconds and away I go - never had any issues with line stability - no dropouts at all.

Then yesterday when I got back home, I powered the kit on and had no connection. Logging into the router I noticed it struggling to get the WAN IP address it was alternating between showing 0.0.0.0 and various other ip addresses for several minutes until settling down to finally accept a stable IP address. Once this happened everthing was OK with a stable line and no dropouts.

When I tested the situation by manually disabling the "Internet Connection" button on my router I could replicate the issue, whereas previously it would take seconds to connect with a new WAN IP Address now it takes several minutes where you can see the "WAN IP" alternating between showing eirther "Disconnected", 0.0.0.0 or a fluctuating IP number until it finally settles on a stable IP address.

OK I thought maybe I have a faulty modem or router, but then I swapped out both units for the ECI modem and AC68U router and exactly the same thing happens with them.

I do have the BT supplied Hub6 still in its box which I confess I have never used. TBH I much prefer to use the ASUS router, and the OpenReach modem/ASUS router combo has worked impeccably for the last three years or so.

Has BT recently changed the way it provides IP addresses when making a new connection to the BT broadband service ?

Re: WAN IP Issue

Gussie1 — Sat, 21 May 2022 18:41:52 GMT

Some more info, this is my router syslog when the connection fails ...

May 21 18:32:11 pppd[1875]: CHAP authentication succeeded: CHAP authentication success
May 21 18:32:11 pppd[1875]: CHAP authentication succeeded
May 21 18:32:11 pppd[1875]: peer from calling number F8:13:08:40:F7:CD authorized
May 21 18:32:11 pppd[1875]: local IP address 217.42.60.204
May 21 18:32:11 pppd[1875]: remote IP address 172.16.14.212
May 21 18:32:11 pppd[1875]: LCP terminated by peer
May 21 18:32:11 pppd[1875]: Connect time 0.0 minutes.
May 21 18:32:11 pppd[1875]: Sent 0 bytes, received 0 bytes.

and this is my router syslog when the connection succeeds ...

May 21 18:32:25 pppd[1875]: CHAP authentication succeeded: CHAP authentication success
May 21 18:32:25 pppd[1875]: CHAP authentication succeeded
May 21 18:32:25 pppd[1875]: peer from calling number F8:13:08:40:F7:CD authorized
May 21 18:32:25 pppd[1875]: local IP address 217.42.111.84
May 21 18:32:25 pppd[1875]: remote IP address 172.16.14.212
May 21 18:32:25 rc_service: ip-up 2439:notify_rc start_firewall
May 21 18:32:25 dnsmasq[288]: read /etc/hosts - 5 addresses
May 21 18:32:25 dnsmasq[288]: read /etc/hosts.dnsmasq - 1 addresses
May 21 18:32:25 dnsmasq-dhcp[288]: read /etc/ethers - 1 addresses
May 21 18:32:25 dnsmasq[288]: using nameserver 8.8.8.8#53
May 21 18:32:25 dnsmasq[288]: using nameserver 8.8.4.4#53
May 21 18:32:25 start_nat_rules: apply the nat_rules(/tmp/nat_rules_ppp0_eth0)!
May 21 18:32:25 rc_service: ip-up 2439:notify_rc stop_upnp
May 21 18:32:25 rc_service: ip-up 2439:notify_rc start_upnp
May 21 18:32:25 rc_service: waitting "stop_upnp" via ip-up ...

Strangely I have noitced the same IP address "217.42.60.204" being offered to me repeatedly - and the connection will always fail! I have to wait a while for a different address to be offered like the one shown above "217.42.111.84" for the connection to be successful. Something very strange is going on.

Re: WAN IP Issue

Gussie1 — Sun, 22 May 2022 11:32:37 GMT

This morning everything seems to be working again as normal - I think BT must have had issues with their login procedures yesterday.