ER605 Upgrade won't run with my existing & working config
The latest firmware will not work with my existing config which runs fine on version 1.1.1 Build 20210723 Rel.64608. I have spent many hours doing many things to try and get a good result bu to no avail. The problem is best illustrated by the following scenario (hardware version is V1.0):
1.With 1.1.1 Build 20210723 Rel.64608 loaded prior to upgrade:
1.1 Save config file
1.2 Factory reset router
1.3 Load saved config file
1.34 Check all good (it is)
2 After upgrade to ER605(UN)_V1_1.2.0 Build 20220114
2.1 Doesn't route and can't communicate with router. Not even a ping at either the config files static address or the routers default 192.168.0.1
2.2 Factory reset
2.3 New firmware runs fine on default config
2.4 Load config file saved in 1.1 above
2.5 Doesn't route and can't communicate with router. Not even a ping at either the config files static address or the routers default 192.168.0.1
3.1 Router is totally stand alone with just a laptop connected to ER605 port 5 and works fine with the old firmware
3.2 All variations of IP addressing tried: nailing up both ends, DHCP at each end in turn pinging all plausible addresses etc etc
3.3 Main config features are: 2xWAN ports, 6 VLANS (including "1") all tagged on port 4, Ports 3&5 untagged VLAN 1, Individual DHCP for each VLAN
4. Clue (maybe)
4.1 When playing with the Router and laptop IP addresses regardless of settings (I think) the router redirects the webpage to an autoconfiguration address (160.x.x.x) before falling silent.
4.2 Whilst the router does not respond to pinging, it times out at the expected address rather than be declared "unreachable" like all the other addresses. This suggests ARP worked at least briefly.
A fix would be much appreciated. I have just purchased three of these for a system upgrade and want to start them off with the latest firmware. I certainly don't want to put them in to service if they are not upgardeable.