I have a BTV cable internet connection, which is a CAT reseller.

Tonight there was a storm and lightning and something got fried.

I have a cable modem and router provided by BTV.

After the lightning I lost my internet connection. On the cable modem the cable connection light is on, and fast flashing as usual.

My thoughts are that the WAN port of the router is fried since that doesn't light up anymore.

So I connect a new router.Connect the WAN port from the router to a LAN port cable modem, and the indicator lamp lights up as connected, and a LAN port from my router to my Ethernet switch.

I then select PPoE and enter username and password in the router. I'm 100% sure these are correct, since the modem doesn't have an option to enter username or password.

Next the router status says that my internet connection is connected, but the gateway IP addresses don't look familiar, and I also don't have internet.

Normally I get gateway IP starting with 110.*** or 117.***, but now I get gateway IP starting with 10.***

When I enter the first gateway IP address in my browser ( 10.2.7.71) I'm directed to the log in screen from my intellinet router, though the IP address from my router is 192.168.2.1, and I can perfectly log in to my router.

When I enter the second gateway IP address ( 10.2.7.1 ) I get an error website from CAT.

Calling to the number on the website doesn't help as they say I have to contact BTV, which is closed at night.

Any help appreciated.

Edit to add: My Local area connection shows traffic though.

This is the system log from my router

Jan 1 00:00:00 (none) syslog.info syslogd started: BusyBox v1.11.1
Jan 1 00:00:17 (none) local2.info pppd[1015]: RP-PPPoE plugin version 3.3 compiled against pppd 2.4.4
Jan 1 00:00:17 (none) local2.notice pppd[1015]: pppd 2.4.4 started by root, uid 0
Jan 1 00:00:17 (none) local2.info pppd[1015]: PPP session is 2417
Jan 1 00:00:17 (none) local2.info pppd[1015]: Using interface ppp0
Jan 1 00:00:17 (none) local2.notice pppd[1015]: Connect: ppp0 <--> eth2.2
Jan 1 00:00:17 (none) local2.info pppd[1015]: CHAP authentication succeeded: CHAP authentication success, unit 203
Jan 1 00:00:17 (none) local2.notice pppd[1015]: CHAP authentication succeeded
Jan 1 00:00:17 (none) local2.notice pppd[1015]: peer from calling number 00:30:88:15:EC:4F authorized
Jan 1 00:00:17 (none) local2.notice pppd[1015]: local IP address 10.2.7.175
Jan 1 00:00:17 (none) local2.notice pppd[1015]: remote IP address 10.2.7.1
Jan 1 00:00:17 (none) local2.notice pppd[1015]: primary DNS address 110.77.255.130
Jan 1 00:00:20 (none) local6.debug upnpd[1323]: UPnP SDK Successfully Initialized.
Jan 1 00:00:20 (none) local6.debug upnpd[1323]: Succesfully set the Web Server Root Directory.
Jan 1 00:00:20 (none) local6.debug upnpd[1323]: IGD root device successfully registered.
Jan 1 00:00:23 (none) local6.debug upnpd[1323]: Advertisements Sent. Listening for requests ...

Still no internet, and BTV will only come in the afternoon, but clearly there is traffic on my WAN so what can be the reason that CAT doesn't allow me to log in?

Are you saying that BTV supplied two components, a Cable DOCSIS Modem, and a standard Router?

If so, then the Cable Modem is working in Bridge Mode.

10.x.x.x range are sometimes used prior to authentication, allowing the equipment to communicate with the provisioning servers and negotiate authentication. When successfully completed, the provisioning server will refresh the DHCP Lease with a IP Address that can connect with the Internet.

Some providers also lock the authentication requirement to the hardware MAC address.