v4.9 is release now I see for local or online upgrade. Filename: mt6000-4.9.0_release1-1015-0605-1780626850.bin I will try this myself later once I finish work. Perhaps we can gather experiences here and save each other some pain?

You’ll at least need the SQM.

My experience so far: I upgraded from 4.8.3. I already had the wifi country code set to GB via LuCI (as that is my location). Post upgrade I do not have any notable degradation of wifi. My Tailscale binding remained intact. My Firewall rules defined in LuCI remain all good and pretty much all othe…

For me the upgrade from v4.8.4 → v4.9.0 instantly broke my main wifi SSID. None of my devices would connect to that SSID anymore. I already made an seperate IoT network, devices connecting to the IoT and Guest SSID’s had no issues at all and had internet access as well. It seemed to be an authentic…

Well, that certainly didn't last long. My OCD was driving me right “spare” so I bowed to temptation and upgraded the firmware on my Flint 2 to 4.9. So far so good, not experiencing anything bad, all working normally. However, I see all sorts of neat stuff I can break and come back here to beg for H…

Naa, I have faith in you bro :oncoming_fist:

Gave in to the temptation to try and did a fresh install. Was just about to post that it has been working great before I started having random and unexplained internet disconnects. Rapidly lost faith and went back to the OP24 version as that has been more stable for me.

Even though firmware 4.9 shows TX power as 20 dBm, it does not necessarily mean the WiFi signal is stronger than in 4.8.3 where it showed 15 dBm. TX power is only the theoretical transmit limit, not the real-world performance. In practice, WiFi strength depends on many other factors such as driver …

It’s a bust from me. I’ll be downgrading again I think. Feels like a step backwards: AdGuard enabled simply does not work. I’ve reduced the blocklists and it improved a bit but I think there is a big memory constraint or something. Enabling DPI limits download and upload to about 600Mbps. I’m …

I think it’s definitely a resource constraint on AdGuard. Pruned my blocklists and rebooted and things have improved somewhat. Don’t really have time to mess about with it today but will see what happens over the next few days.

My experience has been very similar. After upgrading to 4.9 I ran into several issues that simply were not present on 4.8.3. AdGuard Home became unreliable and DNS behavior was inconsistent. I spent quite a bit of time troubleshooting DNSMasq, AdGuard and Multi-WAN interactions, but in the end I co…

Flint 2 v4.9 Firmware Released mt6000-4.9.0_release1

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PoweredByVeg July 1, 2026, 5:54pm 22

That one