I was able to reproduce issue on latest VyOS 1.4-rolling-202205060217
Steps to reproduce:
1 - Fresh/clean vyos router
2 - Add interface configuration (dhcp on WANs and static IP addresses on LAN side), commit and save
3 - Add next WLB configuration:

PR https://github.com/vyos/vyos-1x/pull/1317

Try to delete sync-group, as you use only one group

Implemented as set policy route-map FOO rule 10 set as-path prepend-last-as 2

PR for 1.3 https://github.com/vyos/vyos-1x/pull/1315

PR for 1.3: https://github.com/vyos/vyos-build/pull/231
PR for 1.4: https://github.com/vyos/vyos-build/pull/230

In 1.4 it working

set policy route-map FOO rule 10 action 'permit'
set policy route-map FOO rule 10 set as-path-prepend 'last-as 2'

PR https://github.com/vyos/vyos-1x/pull/1312

I can't reproduce it
With such configuration all works fine VyOS 1.4-rolling-202204300743:

set load-balancing wan interface-health eth4 failure-count '5'
set load-balancing wan interface-health eth4 nexthop 'dhcp'
set load-balancing wan interface-health eth4 success-count '1'
set load-balancing wan interface-health eth4 test 10 target '192.0.2.40'
set load-balancing wan interface-health eth5 failure-count '5'
set load-balancing wan interface-health eth5 nexthop 'dhcp'
set load-balancing wan interface-health eth5 success-count '1'
set load-balancing wan interface-health eth5 test 10 target '192.0.2.50'
set load-balancing wan interface-health eth6 failure-count '5'
set load-balancing wan interface-health eth6 nexthop 'dhcp'
set load-balancing wan interface-health eth6 success-count '1'
set load-balancing wan interface-health eth6 test 10 target '192.0.2.60'
set load-balancing wan rule 10 failover
set load-balancing wan rule 10 inbound-interface 'eth7'
set load-balancing wan rule 10 interface eth4
set load-balancing wan rule 10 interface eth5
set load-balancing wan rule 10 interface eth6
set load-balancing wan rule 10 protocol 'all'
set load-balancing wan sticky-connections

Configuration

# cat /etc/sshguard/sshguard.conf 
#### REQUIRED CONFIGURATION ####
# Full path to backend executable (required, no default)
BACKEND="/usr/lib/x86_64-linux-gnu/sshg-fw-nft-sets"

If it helps, I am also getting the exact same errors and problems, would love to see this working please

Prometheus server pulls information correctly

PR
https://github.com/vyos/vyos-1x/pull/1310

We also need to verify remote-as in v6only or interface definitions:

I've tried with a new spoke and I can't seem to register using `reload-or-restart', although it resolved the lost connectivity issues the opennhrp process needs a full restart. however, if you restart opennhrp daemon it causes different issues and usually the spoke loses connection.

## hub

Thank you, team, for such a quick response to my request. I have not even had the chance to test it yet but trust that this will work perfectly. Again, many thanks!

PR: https://github.com/vyos/vyos-1x/pull/1306

I did this change as you mentioned and it worked, , example:

@RyVolodya could you recheck it?

Try to replace option restart to reload-or-restart and re-configure from scratch, it may help.
https://github.com/vyos/vyos-1x/blob/363ecfa46cdb8402ea71637717863f01b09f428b/src/conf_mode/protocols_nhrp.py#L107

Hub basic setting :

Yes ,you need to reload the services and it works , here's an basic example with the current configuration :

It is not only for dhcp, any service can be affected to this
There are no many check when we remove interface

@fernando Does it work if you "reload" configuration?

Works as expected

PR for 1.3
https://github.com/vyos/vyatta-op-vpn/pull/33
https://github.com/vyos/vyos-1x/pull/1303

Fixed VyOS 1.4-rolling-202204260601

set nat source rule 10 destination port '!22,telnet,http,123,1001-1005'

nft:

oifname "eth4" tcp dport != { 22-23, 80, 123, 1001-1005 } counter packets 0 bytes 0 masquerade comment "SRC-NAT-10"

VyOS 1.3.1-S1 is not affected:

table ip nat {
	chain PREROUTING {
		type nat hook prerouting priority dstnat; policy accept;
		counter packets 1 bytes 112 jump VYATTA_PRE_DNAT_HOOK
	}

PR https://github.com/vyos/vyos-1x/pull/1302

PR https://github.com/vyos/vyos-1x/pull/1301