troubleshooting Question

cannot route between 2 HP v1910 switches on Etherflow WAN

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Hi All

Let me explain my scenario, I have a wires only wan provided for me by my ISP which is a hub and spoke WAN for three sites, each of the spokes has a VLAN, one is VLAN 20 and the other is VLAN 30. The ISP has sent me the following info:
Hub
Etherway port should be configured as Trunk port using dot1q (802.1q) encapsulation.
VLANs for each Etherflow (in this case 20 + 30) plus the native vlan (default 1) should be allowed through this port.
Example Cisco Config based on above diagram
interface FastEthernet0/1                         
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,20,30
 switchport mode trunk
Spokes
The spokes must also be configured as trunk ports using dot1q encapsulation. However because the BT network strips the VLAN tag from the frame, the native VLAN must be changed from the default (1) to the VLAN for that spoke (20 for spoke 1, 30 for spoke 2)
Example Cisco Config for spoke 1 based on above diagram
interface FastEthernet0/20                        
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk native vlan 20
I have configured the hub with this config
Hub Site
#
 version 5.20 Release 1108
#
 sysname PP3-RT06
#
 domain default enable system
#
 telnet server enable
#
 ip ttl-expires enable
#
igmp-snooping
#
vlan 1
 description DMZ
 igmp-snooping enable
#
vlan 20
 description Etherflow site A
#
vlan 30
 description Etherflow Site B
#
domain system
 access-limit disable
 state active
 idle-cut disable
 self-service-url disable
#
user-group system
#
local-user admin
 authorization-attribute level 3
 service-type ssh telnet terminal
#
 stp mode rstp
 stp enable
#
interface NULL0
#
interface Vlan-interface1
 ip address 10.11.11.1 255.255.255.0
#
interface GigabitEthernet1/0/1
 stp edged-port enable
#
interface GigabitEthernet1/0/2
 stp edged-port enable
port link-type trunk
 port trunk permit vlan 1
 stp edged-port enable
interface GigabitEthernet1/0/15
 port link-type trunk
 port trunk permit vlan 1 20 30
 stp edged-port enable
#
interface GigabitEthernet1/0/16
 port link-type trunk
 port trunk permit vlan 1 20 30
 load xml-configuration
#
user-interface aux 0
 authentication-mode scheme
user-interface vty 0 15
 authentication-mode scheme
#
Return

The spoke site has the following config
version 5.20 Release 1108
#
 sysname PPB-RT01
#
 domain default enable system
#
 ip ttl-expires enable
#
vlan 1
 description DMZ
#
vlan 30
 description Etherflow
#
domain system
 access-limit disable
 state active
 idle-cut disable
 self-service-url disable
#
user-group system
#
local-user admin
 authorization-attribute level 3
 service-type ssh telnet terminal
#
 stp mode rstp
 stp enable
#
interface NULL0
#
interface Vlan-interface1
 ip address 10.11.11.49 255.255.255.0
#
interface GigabitEthernet1/0/1
 stp edged-port enable
#
interface GigabitEthernet1/0/2
 stp edged-port enable
interface GigabitEthernet1/0/15
 port link-type trunk
 port trunk permit vlan 1 30
 stp edged-port enable
#
interface GigabitEthernet1/0/16
 port link-type trunk
 port trunk permit vlan 1 30
 stp edged-port enable
#
load xml-configuration
#
user-interface aux 0
 authentication-mode scheme
user-interface vty 0 15
 authentication-mode scheme
#
Return

The two sites are on the same subnet for their VLAN 1 interface but for some reason I cannot ping the other site. I am at a lost as to what the problem is and the ISP is not much help so any help would be great
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