I bought a Linksys WRT3200ACM router for my brother, building a PC router for him was too much. I like Linksys and that thing is a monster. Since I wanted support for USB LTE I installed Openwrt (latest stable).
Now I have support for USB LTE and that is working but I am having all kind of other problems which I am not used to from Linksys or Openwrt.
I went to Firewall, Port Forwarding, configured my port but no luck. Port stay closed. I have installed UPNP but still no luck. That port stays closed… What am I doing wrong? Port Forwarding is not exactly “Rocket Science”
The DHCP is always working on LAN (4 port switch RJ45), on Wifi it’s sometimes working sometimes not and I don’t know why. There is not exactly much to configure here. Especially the “Light Bulbs”, my brother has Wifi “Light Bulbs” that are controlled by Amazon Alexa. Three of them connect to the Wifi and work, two of them connect to the Wifi (I can see them in Luci) but don’t get an IP address. I also can’t configure them over the App because the App only connects to the first Bulb. When I start the old TP-Link router, no problems. I don’t get it… All the steps are the same with the TP-Link router and the Openwrt router, but they just don’t work with Openwrt.
The whole thing feels extremely unstable. I lose connections on the Wifi side, I can’t reach the router and have to turn it off and on to connect to him again. For example, Alexa connects so the Wifi and works fine, five minutes later Alexa can’t connect to Wifi, I have to restart the router. When I am connected to Luci I see the three Wifi’s working and then without any reason they are all offline, 3 sends later they are online again.
On my PC with Openwrt, I don’t have these problems. The whole build is stable and works fine…
What should I do? Going back to Original firmware is not an option because I need the LTE. Should I try an older version or to build one myself? I tried reinstalling it, I tried a snapshot but no luck…
sorry it took a little longer to answer, I wasn’t home ....
This is the output of the two files. Maybe I should say that the "Interfaces" are all created automatically on the first boot. I just change the settings. The Firewall is "untouched" except for the port forwarding...
I had the following Idea. As I said I have the Linksys WRT3200ACM and a TP-Link MR200.
The MR200 has a bult in SIM Card slot which is good, no USB fumbling but he is to weak, a little bit more traffic and he is gone, you can’t reach him, he gets really hot, you can’t touch him and after some time he reboots….
The WRT3200ACM is strong and fast but no SIM Card slot, problems with Wifi probably caused by the IOT equipment and the port forwarding doesn’t work just now.
My Idea was, I take the MR200 put the Sim Card in it and connect it to the WAN port of the WRT3200ACM. On the MR200 I turn off the SSID Broadcasting and connect Alexa, Light Bulbs, TV all IOT directly to the not Broadcasted SSID of the MR200. He is strong enough for the IOT Stuff and he is stable enough for it.
On the WRT3200ACM I configure the Wifi to broadcast and use it for PCs, laptops, Xbox and so on. He is strong enough to handle the traffic and I can even use Qos to favorize Xbox traffic or I could use the third Wifi for gaming and favorize the third Wifi.
Would this setup work?
What are your thoughts?
What would you change?
Of course, I have to get the port forwarding going while with this setup I have to forward a lot of ports to the WAN router and then to the Internet.
Useful would be a function called “DMZ” which I just can’t find in Openwrt(luci). With that function I could set a “DMZ” to the IP of the WAN router and wouldn’t have to forward each port individually or is this a thinking mistake? I need a DMZ from the WAN router to the IP of the WRT3200ACM (which is not a Problem, the MR200 has DMZ)?
yes I have 5 WAN Interfaces but I thought that is normal with Openwrt because I didn't make them, they are automatically configured after the first boot. I just need one but that is impossible (at least for me). I can delete all the extra Interfaces, apply the changes, all good. After I reboot the machine, they are all back (tried that several times). Everything gets saved and lives after the reboot except the WAN Interfaces, they all get back after the reboot.
Maybe you can remember a week or two ago I build a router PC with Openwrt, on that PC I have 6 WAN Interfaces and 3 TAPI Interfaces which I can delete but they are all back after the reboot. That is why I thought that this behavior is normal. That means on my router PC port forwarding also doesn’t work (haven’t tested it yet).
Do you have an Idea how I can permanently delete all the other Interfaces? I need just one WAN (on my router PC 2)…
Thank you for your answer. I understand what you mean but if I configure the WRT3200ACM as a dumb AP wouldn’t I lose his power? This is the main reason for the change to the bigger router. The CPU of the MR200 is to weak, it can’t handle the traffic. If I configure the WRT3200ACM as AP the MR200 would still have to handle all the traffic, or am I thinking wrong? I wanted the WRT3200ACM to handle the traffic and all the NAT because he has enough power to do so. The MR200 should just be a “dumb WAN Interface” but also handle the IOT stuff because the WRT3200ACM has problems with it…
Could you please explain what this line does? As far as I understand the line, it deletes the source port. Wouldn’t that mean that I am redirecting all the traffic form the WAN Interface to one port and one machine?
today I tried to compile an image for the WRT3200ACM with the latest sources and found out that this is not possible. Every Image that get created is incompatible with the router. There is absolutely no problem compiling the stable sources and the image is compatible with the router. I noticed one difference in “make menuconfig” between the stable and the latest branch. In the “Target Profile” of the stable branch I can select the WRT3200ACM “Rango”, nothing else. In the “Target Profile” of the latest branch there is the WRT3200ACM “Rango” and the WRT3200ACM (without “Rango”), when I select the “Rango” the other one gets selected automatically and I can’t unselect it. Can it be that this is the reason I get incompatible Images? I tried to force flash the Image which basically bricks the router, luckily it has two boot Images so I switched to the other one and reflashed the first one with a stable image…
Is there a way or a trick to unselect the second WRT3200ACM? Maybe that would produce a compatible Image?
I just finished building and flashing an image from current master with no issues. There was a name reconciliation pushed to master a while back, but that should not cause any issues. What do you mean when you say the images is incompatible; if you are moving between stable and master you will / should get a warning, do not keep config as master has changed to DSA and will yield an install with no link on the wan / lan nics.