Hello,
3 years ago I got this router for a remote second house installation, a location that I need to monitor remotely having several IP cams and other smart home devices.
Back then I somewhat managed to make it work in bridge mode with a dual WAN Linksys LRT224, and a mediocre DSL as failover on WAN2. With a strong 800m-away TIM repeater in Italy, I got 3-4 notches of signal and 15Mbit/3Mbit at its worst, 25/7 at its best depending on the days and times. I called it a day back then and moved along.
During the last year this setup started malfunctioning sporadically with frequent disconnections of the SXT LTE6 and resulting switches to the failover wan, than back again after a couple of minute and so on, totally sporadically, multiple times a day. I have Uptime Robot on every device to monitor these events. The LRT224 log just says "connection lost, switching to WAN2".
I did some reading and in many places I saw suggestions about updating the LTE firmware. I realized there are actually three things to update in this Microtik: the router OS, now running 7.3 via file update, the routerboard firmware, and the LTE firmware, which is still 020 and, for what I read, the first thing to update before troubleshooting these disconnections any further.
Just updating the RouterOS to 7.3 may have made it better already, but it could be a coincidence.
Problem 1: I cannot update the LTE firmware because "DNS cannot be resolved" when trying to do any over the air updates. For all I read, I tried to stick 8.8.8.8 in various places to no success.
Problem 2: I would love for somebody expert to review in general my entire configuration file and spot if I did any mistake that may impact the performances (LTE bands, things like that)
After all I don't have any "crazy configuration" in the LAN, which can be summarized like this:
- SXT-LTE6 as primary WAN, on 192.168.0.x IP, connected to WAN 1 of the router LRT224
- Asus DSL modem in bridge mode, on 192.168.0.y IP, connected to WAN 2 on the router LRT224
- LRT224 is in 'fail over' mode with WAN 1 priority, and DHCP on the 192.168.1.x group
- bunch of devices behind LRT224 via various switches, no further firewalls or anything special
- very important requirement which I have in place: I have several ports open in the router, one for each camera, so both the Microtik and the Asus DSL modem are absolutely transparent to outside requests through these port (is it called pass-through bridge I think?) . There are two different dyndns addresses one per connection ( I know this is not safe but there are practical reasons for this like not having older parents having to mess with openVPN clients)
All of the above works fairly well, with the router switching to WAN 2 when WAN 1 is not available.
The first question is then: how do I dump the entire configuration of the Microtik on a file to upload here, and,
second question: would there be anyone so kind to give it a review? For some post I read, there were other users with grossly misconfigured routers that were still working somewhat, but far away from their target performances, and I am afraid I may be one of those cases.
Thank you so much to everyone who may help, sorry I am kind of a noob here