Ok so I have been using my Linksys EA6350v3 since January of this year and have not had any issues at all. All of a sudden, my internet just refused to work on any devices despite being able to “connect.” Here is my configuration, please let me know if I need to include anything:
IPv4 Upstream:
Protocol: DHCP Client
Address: 100.127.52.46/25
Gateway: 100.127.52.1
DNS 1: 66.76.203.153
DNS 2: 66.76.47.153
Interfaces:
LAN:
Protocol: Static
IPv4 Address: 192.168.1.1
IPv4 netmask: 255.255.255.0
IPv4 Gateway: 100.127.52.1
IPv4 broadcast: 192.168.1.255
Use custom DNS servers: N/A
WAN eth1:
Protocol: DHCP client
I have tried changing the gateway on the LAN to 192.168.1.1 but it told me that “the gateway address must not be a local IP address.” Please please help me with this configuration, I have absolutely no clue why it stopped working.
You o.no need to specify a gateway on LAN at all. But I do not think that is the issue.
You need to debug into the issue, do not stop on "internet does not work".
On OpenWrt's GUI, go to Network > Diagnostics and try all three utilities. Then from a computer in your network, do a ping to 8.8.8.8 then google.com, and post the results here.
Definitely remove the option gateway from the lan configuration. The gateway will be inherited throughout the OS when the wan receives a DHCP assignment. This can be confirmed by running route to inspect the routing table.
Like @eduperez said you need to check your modem make sure the cable DSL etc link to the service provider is active and the subscription is current.
I have the WAN configured as DHCP. I also tried plugging my computer directly into the modem, but all the diagnostics had the exact same effect. I grabbed the ip and DNS servers and used the gateway it used when auto configuring (couldn’t find subnet mask but just used 255.255.255.0) when I had my computer plugged directly in and then switched back to change the WAN settings to a static version of these as well. That had a similar effect.
The lights on the modem are all reading properly. The lights on the router where the Ethernet ports are have been blinking to signify that there is a signal being passed across. I also got into the modem’s panel and everything seemed to be working fine. Called my ISP, no outages in my area and they can see my modem just fine.
Yeah I noticed it was grabbing automatically so I did end up leaving it blank. I called into my ISP and they can see a connection to my modem and it all looks healthy to them. I also have my bill fully paid so also not a concern (but something I did look into).