Auto-connection of a backup Internet channel. Is there a Mikrotik replacement?

Question

Computer networks

There is a problem in the remote office - relatively unstable internet.
2 providers are included - PPPoE via optics through a media converter and WiMax router gives ethernet.
It is required to provide the office with Wi-Fi, the possibility of remote VPN connection to the network, port forwarding and automatic switching to a backup provider. Perhaps support at the same time 4G modem.
It's just that load balancing between providers is not an option - the alternative channel lags well.
At the moment it works at the input of MikroTik RB951G-2HnD, raising the backup channel is implemented through 2 routes with gate ping via optics
(
/ip route add gateway=192.168.1.1 check-gateway=ping
/ip route add gateway=192.168.2.1 distance=2
).
It turns out to switch, but switching back is possible only with a reboot.
Crutch bikes on scripts also do not shine with stability and predictability.
Need a level piece of iron launched and forgot where it is.
The authorities are so fed up with the current situation that they have a budget of around $1,000.
At the moment there is such a funny bug
forum.mikrotik.com/viewtopic.php?f=2&t=99179
What to choose (and what brains will be enough)? Or how to set up Mikrotik once and for all?
UPD: I look in the direction of ciscos, although they also have their own trash and waste.
UPD2: Cisco 881 was recommended as an alternative, I'll put it off for a very distant future, although the config fragment responsible for the actual failover turned out to be noticeably better than the Mikrotik solution:
track 1 ip sla 1 reachability
ip route 0.0.0.0 0.0.0.0 XXXX track 1 Here route via Def GW 1st Prov
ip route 0.0.0.0 0.0.0.0 YYYY 20 - Here route via Def GW 2nd Prov
ip sla 1
icmp-echo 77.88.8.8 source-interface Dialer1
frequency 5
ip sla schedule 1 life forever start -time now
plus an event handler that cleans up nat translation tables
From the shelf I took out an old dusty Zyxel Keenetic with the second version of the firmware. Yes. There are necessary checkboxes, it was possible to raise the solution on it, but its Wi-Fi is rather weak for those conditions (they moved from it to Mikrotik)
FINAL:
The final decision was made based on the answer of Mihail_Manowar . Switchover within a maximum of two minutes.
Plus, my bug was found in the settings (thanks Grustnui ) - ether2 hung on bridge-local (plugged into the WiMax hardware with its own DHCP), wlan1 and others. Mikrotik's own DHCP server paused according to the standard settings and did not have time to respond in time.
As a result, the user, clinging to Wi-Fi, received the address assigned by the WiMax piece of iron, so it ran decently on the local network, but the Internet was terribly slow, because it went out through a slow backup channel.
Final distribution of ports -
ether1 - ether2 optics
- WiMax router
Bridge-local includes:
ether3-5 locale
wlan1
Thanks to all who answered!

Answer 1

Have you tried netwatch on Mikrotik?
For example , this is how you can set it up.

Answer 2

My mikrotik switches channels with a bang. At the same time, it is not the gateways that are being probed, but 3 designated nodes.
Also, everything on the same mikrotik is backed up by raising the 3G modem. Those. if wan1 fell, pptp rises via usb 3g modem.
All this is self-written scripts.

Answer 3

As an option to replace Mikrotik: try juniper srx. We use on 50+ dots (srx 240 core, on dots srx100). We use it for ipsec tunnels, switching to a backup channel and as a firewall. Mikrotik is more difficult to set up, approximately at the level of Cisco (but reliability is at the same level, and the price is lower). The only but, these are models without wi-fi.