Need to reboot root bridge for RF connectivity

We have installed RF connectivity with Cisco Aironet 1300 between two sites.The distance is 1 km.
The connectivity is intermittent and shows radio errors in logs.
After rebooting the root bridge at one site the connectivity is restored.
We have not been able to locate the problem . Plz Help
the configs are as below :
Site 1 :
ROOT BRIDGE
ip subnet-zero
aaa new-model
aaa group server radius rad_eap
aaa group server radius rad_mac
aaa group server radius rad_acct
aaa group server radius rad_admin
cache expiry 1
cache authorization profile admin_cache
cache authentication profile admin_cache
aaa group server tacacs+ tac_admin
cache expiry 1
cache authorization profile admin_cache
cache authentication profile admin_cache
aaa group server radius rad_pmip
aaa group server radius dummy
aaa authentication login eap_methods group rad_eap
aaa authentication login mac_methods local
aaa authorization exec default local
aaa accounting network acct_methods start-stop group rad_acct
aaa cache profile admin_cache
all
aaa session-id common
dot11 activity-timeout client default 99999
dot11 activity-timeout repeater default 99999
dot11 activity-timeout workgroup-bridge default 99999
dot11 activity-timeout bridge default 99999
dot11 ssid yyyy
authentication open
dot11 network-map
bridge irb
interface Dot11Radio0
bandwidth inherit
no ip address
no ip route-cache
ssid yyyy
speed basic-1.0 basic-2.0 5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0
no preamble-short
station-role root bridge
cca 75
concatenation
distance 2
antenna gain 14
infrastructure-client
bridge-group 1
bridge-group 1 port-protected
bridge-group 1 spanning-disabled
interface FastEthernet0
no ip address
no ip route-cache
full-duplex
bridge-group 1
bridge-group 1 spanning-disabled
interface BVI1
ip address 10.1.254.252 255.255.255.248
no ip route-cache
ip default-gateway 10.1.254.249
ip http server
no ip http secure-server
ip radius source-interface BVI1
radius-server attribute 32 include-in-access-req format %h
radius-server vsa send accounting
control-plane
bridge 1 route ip
Site 2 :
aaa new-model
aaa group server radius rad_eap
aaa group server radius rad_mac
aaa group server radius rad_acct
aaa group server radius rad_admin
aaa group server tacacs+ tac_admin
aaa group server radius rad_pmip
aaa group server radius dummy
aaa authentication login eap_methods group rad_eap
aaa authentication login mac_methods local
aaa authorization exec default local
aaa accounting network acct_methods start-stop group rad_acct
aaa session-id common
dot11 activity-timeout client default 99999
dot11 activity-timeout repeater default 99999
dot11 activity-timeout workgroup-bridge default 99999
dot11 activity-timeout bridge default 99999
dot11 ssid yyyy
authentication open
infrastructure-ssid
bridge irb
interface Dot11Radio0
bandwidth inherit
no ip address
no ip route-cache
ssid yyyy
short-slot-time
cca 75
concatenation
speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0
station-role workgroup-bridge
antenna gain 14
keepalive 9999
infrastructure-client
bridge-group 1
bridge-group 1 port-protected
bridge-group 1 spanning-disabled
interface FastEthernet0
no ip address
no ip route-cache
bridge-group 1
bridge-group 1 spanning-disabled
interface BVI1
ip address 10.1.254.253 255.255.255.248
no ip route-cache
ip default-gateway 10.1.254.249
ip http server
no ip http secure-server
ip radius source-interface BVI1
radius-server attribute 32 include-in-access-req format %h
radius-server vsa send accounting
control-plane
bridge 1 route ip

Hi Sanjay,
Nothing is jumping out from the config all seems fairly standard. Points more to an RF problem.
Can you post the error logs/messages from the radios.
How much clearence above obstacles do you have between the link? At that distance on 2.4GHz there should be around 6m free space.
What antennas are you using? Have you performed a spectrum analysis at either end of the link to determine potential interference on the channel used?
From each end could run the following command and post the output:
show dot11 stat cli
show dot11 carrier busy
Thanks
Mat

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Hi,
Having more than one root switch for a VLAN is definitely a sign of some foul play. A contiguous VLAN can never have more than one root switch. Multiple root switches would occur if, for example, the trunks interconnecting the switches had this VLAN excluded from the list of allowed VLANs, or if they were interconnected by access ports (in a different VLAN) rather than trunks. Another possibility could be an inappropriately constructed MAC ACL or VLAN ACL inadvertently block BPDUs. In any case, this may be a source of serious trouble.
Without further information about your network, it is difficult to suggest anything more specific. Would it be possible to post a diagram explaining your network topology? Also, would it be possible to post the show span root and show span bridge outputs from every switch in your network?
Thank you!
Best regards,
Peter

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