Cannot login after changing router

Configuration
1

Hi all,

Dutch provider Ziggo forced a router change. The Connectbox cannot longer be used and must be swapped for a SmartWifi modem. Now Im no longer able to access the UI anymore.

  • SSID and password remained the same.
  • Other hardware can connect to wifi.
  • Set up port forwarding again with previous settings, switched of UDnP.
  • IPv4 addressed for HA is reserved and thus fixed. Used previous MAC address and IP.
  • Not able to access https://myip:8123/
  • When using PuTTY to remotely access HA over ssh it says host does not exist
  • When pinging it says destination host unreachable.
  • When running Angry IP scanner it shows the IP being a dead host

Anyone has any ideas how to tackle the issue as above?

thanks in advance

2

What about locally (IE on lan)

3

Couple of thoughts:

  • Try to ping it using $ping homeassistant.local from the same LAN that HA is on.
  • Check the router to see if has assigned an IPv4 address to the MAC address of HA
  • Is your HA only using WiFi to connect? If yes, it may be the case that HA is locked onto the BSID of the old router even though the SSID/password are the same for the new router.
4

And check if the WiFi allows clients to connect to each other (isolate client). That’s a safety feature some routers have to prevent Malware from spreading across the network for instance

5

To me it seems that the IP of your HA instance has changed with the new router.

  1. Does your HA have a fixed IP or dynamic?
  2. What if you ping the IP of your HA system, do you get a reply?
  3. What kind of setup do you run?
6

Hi

thanks for your input, this is a learning expierence, so please bear with me.

  1. Plugged in the Raspberry pi (v3) into the router via an ETHcable. IP address seem to have changed. Adjusted it accordingly and assigned the IPv4 address to the MAC of HA (address reserved)
  2. Logged into the UI, changed the HA IP from dynamic to static.
  3. Removed the cable, tried to access HA over WIFI, does not work.
  4. Pinged the new IP but cannot find the host.
  5. Logged into the UI again via cable, noticed under “Home Assistant URL” it gives a warning:

“Local URL not valid” You configured a HTTPS certficate in Home Assistant. This means your internal URLmust be adjusted to a domain that falls under the certificate"

Would you have a link where I can learn how to check if WIFI allows to connect to each other, feel free to share.
Where do I look to understand if BSID is locked?

Seems Im getting closer, but issue still remains/

thanks for your time and help

UPDATE: somehow the network configuration for wlan got removed. Added with new IP and added wifi endpoints. Seems to work now.

7

If you have 2 interfaces, they will have different IP addresses and it’s advisable to assign fixed IP’s to servers or to be aware that addresses change when you swap the device that hands out your IP’s.