For info - 4.3.2 RC3, router has crashed twice with this RC, runs for a few days then stops responding and internet is dead, gone back to 4.3.1 (4.3.1.1 wasnt good for me either).

yes same for me. 4.3.1.1 has been fine for me but 4.3.2 RC3 crashed nastily after a few days, tried it again and same happened.

definitely one to avoid for now

Glad it wasnt just me then - thanks!

The memory leak with 4.3.2_RC3 is much worse than with 4.3.1.1. You can see the memory increase in our Zabbix dashboard every few hours before it gets to about 85% then the router crashes and needs a power cycle.

4.3.1.1 was not good, we would get about two to three weeks before a crash, so have gone back to it. We use Wireguard, which is great, for LAN2LAN VPNs, so the new features are really appreciated, just not the worse stability.

Static IP4 & IP6, 7 VLANs, 100 clients, six site to site VPNs.

The memory leak with 4.3.2_RC3 is much worse than with 4.3.1.1.

yeah sadly true I don't recognise the quality of this release as being Release Candidate at all. Surprised it wasn't spotted earlier and kinda worried about what the quality of the final release will be...

Memory creeps up, then router crashes.

As a test to eliminate other networking hardware (switches and APs) in our network, our use and configuration of multiple VLANs, IPV6, FTTP ISPs, any user device compatibility (mac, pc and Linux), our VPN providers, and our use of Cloudflare Zero Trust warp services; we removed the 3910 and replaced it with a virtualised PFSense solution running on ESXi7 with dual passthough NICs (for those who are interested in the test).

IPV6 now works flawlessly across multiple LANs and across the WAN. All devices respond the same (or quicker) than the latest 3910 firmware, stability is rock solid and overall delivers everything the current 3910 firmware does not.

I hope the next revision of the firmware resolves all these issues, otherwise DrayTek does not deserve to claim any credentials for enterprise grade solutions.

At least we now know the issue is the firmware. Early version 3.x was excellent (although lacking some features). It all started going wrong after version 3.9.2