After my provider rotates my WAN IP address, my router as a rule (but not allways) looses ability to route any devices (LAN and WLAN) out to the Internet. At the same time, inbound connections work perfectly and the router itself sees and uses the Internet perfectly OK. Inet is up 24/7 and it is at a remote location.
I have USB 3G modem connected to Asus RT-AC56U fw Asuswrt-Merlin RT-AC56U_380.59_0. Possible idea of it drawing too much power is wrong: it draws maximally 170 ma (measured), and that is absolutely below any USB risk level. Changing the modem's position to vertical at 2 m height does not influence anything, so no signal problem there.
My provider rotates address once in 1 or 2 days, most often at the similar time early before the morning. I have seen them rotating after an hour. I can not do anything there.
Router works perfectly. When after some time my WAN IP address gets rotated, router sees that new IP address normally. ping -c1 8.8.8.8 | grep "packets received" sees no problems, curl -s http://icanhazip.com and wget -q --spider http://google.com work OK.
Router displays WAN IP address OK. Router updates both my DDNS services with the new IP address OK. Router sends me an e-mails about the new WAN IP address OK. I can connect to my VPN server created by the router. From outside, I can connect perfectly using that VPN to my local: server, to Raspberry or Camera. I can normally communicate with them and get desired data from them using VPN server at the Router. I can connect VPN client from that router to another VPN server.
But.... Inside the network, I can not get to the Internet. All my LAN devices - that same Raspberry, server or Camera do not see the Internet. My PC and phone as WLAN devices do not see the Internet. I tried WEB, NTP, file transfers, e-mail...
So, my guess is that something is wrong with IP tables inside the router and that it does not do what is needed after my WAN IP address rotates.
On ocassions, I can find the problem using internal check:
ip route | grep "default"
or external one:
wget -q -4 --spider http://google.com
But, sometimes, as today, they just do not see anythinng is wrong. As I said, my router has perfectly sucessfully sent me 2 e-mails with new IP address after they were assigned to my two DDNS services. Sometimes, one of these two commands do realize there is no Internet and then I reboot the modem. After the reboot, almost always all is perfect again.
I could try checking the Internet from another device and then communicate to my Router to reboot. But, this is overkill. I will try using an USB modem which will put my router after a double nat so that the routing between the router and modem never needs to be changed. But, that may introduce a new set of problems (going from a single nat to the double nat).
But, I would prefer if my Router would work as expected.
I have USB 3G modem connected to Asus RT-AC56U fw Asuswrt-Merlin RT-AC56U_380.59_0. Possible idea of it drawing too much power is wrong: it draws maximally 170 ma (measured), and that is absolutely below any USB risk level. Changing the modem's position to vertical at 2 m height does not influence anything, so no signal problem there.
My provider rotates address once in 1 or 2 days, most often at the similar time early before the morning. I have seen them rotating after an hour. I can not do anything there.
Router works perfectly. When after some time my WAN IP address gets rotated, router sees that new IP address normally. ping -c1 8.8.8.8 | grep "packets received" sees no problems, curl -s http://icanhazip.com and wget -q --spider http://google.com work OK.
Router displays WAN IP address OK. Router updates both my DDNS services with the new IP address OK. Router sends me an e-mails about the new WAN IP address OK. I can connect to my VPN server created by the router. From outside, I can connect perfectly using that VPN to my local: server, to Raspberry or Camera. I can normally communicate with them and get desired data from them using VPN server at the Router. I can connect VPN client from that router to another VPN server.
But.... Inside the network, I can not get to the Internet. All my LAN devices - that same Raspberry, server or Camera do not see the Internet. My PC and phone as WLAN devices do not see the Internet. I tried WEB, NTP, file transfers, e-mail...
So, my guess is that something is wrong with IP tables inside the router and that it does not do what is needed after my WAN IP address rotates.
On ocassions, I can find the problem using internal check:
ip route | grep "default"
or external one:
wget -q -4 --spider http://google.com
But, sometimes, as today, they just do not see anythinng is wrong. As I said, my router has perfectly sucessfully sent me 2 e-mails with new IP address after they were assigned to my two DDNS services. Sometimes, one of these two commands do realize there is no Internet and then I reboot the modem. After the reboot, almost always all is perfect again.
I could try checking the Internet from another device and then communicate to my Router to reboot. But, this is overkill. I will try using an USB modem which will put my router after a double nat so that the routing between the router and modem never needs to be changed. But, that may introduce a new set of problems (going from a single nat to the double nat).
But, I would prefer if my Router would work as expected.
