@Vincent-TP This build, for OC300 at least, is now on the US support site. Controller itself still identifies it as RC

There is another VPN issue specific to ER605 2.3.1 It is unreliable in re-establishing site-to-site IPSec VPN where it is the initiator. We had an ISP issue today at main site causing loss of...

High strangeness indeed! I think its safe to say that ER605 2.3.1 has a broken L2TP implementation though, definitely something wrong with it... ER8411 has a Broken WAN MTU implementation since i...

Things get more bizzare! I hooked up my factory reset 605 running 2.3.1, running it totally in standalone mode Default MTU of 1500 - all VPNs work to Omada and Draytek Gateways (pure IPsec only VPNs...

@MR.S WAN MTU of 1400 seems to be the middle ground for me - I can connect to Omada and Draytek gateway VPNs properly with traffic passing, and RDP isnt borked What happens if you change the WAN MTU...

@MR.S I will see how my 605 behaves today and let you know!