5700BH20 link slow to register, many regfails !

I have a new 5700BH20 link and am seeing a problem when we reboot either the master or slave. It takes a long time to register, upto 15mins at times… If we look at the AP eval data, we see a lot of ‘REGFAILS’.

Once the link is up, it is rock solid (100% link test up&down). Only when we startup the link do we see the long delay…

Does anyone have any ideas?


Slave :
Session Status REGISTERED
Registered AP 0a-00-3e-f6-2d-2f
RSSI 1627 (-46 dBm)
Jitter 2
Air Delay 116 (approximately 1.08 miles (5684 feet))

LUID: 002 : MAC: 0a-00-3e-f6-2d-cd State: IN SESSION (Encrypt Disabled)
Site Name : No Site Name
Software Version : CANOPY 7.3.6 Oct 24 2005 12:06:56
Software Boot Version : CANOPYBOOT 3.0
FPGA Version : 070605 (DES Sched) P9
Session Timeout: 0, AirDelay 116 (approximately 1.08 miles (5684 feet))
Session Count: 1, Reg Count 1, Re-Reg Count 0
RSSI (Avg/Last): 2319/1740 Jitter (Avg/Last): 1/0 Power Level (Avg/Last): -31/-45
LoUpCIR(SM): 0 LoDnCIR(SM): 0 (kbps)
Rate : VC 18 Rate 2X/2X VC 255 Rate 2X/2X

Ap Eval Data
Index: 0 Frequency: 5840.0 MHz ESN: 0a-00-3e-f6-2d-2f
Jitter: 1 RSSI: 1616 Power Level: -46 Beacon Count: 39 BRcvW: 0 DFS: 0 FEC: 0
Type: SinglePoint Avail: 1 Age: 0 Lockout: 0 RegFail 67 Range: 5684 feet TxBER: 0 EBcast: 0
Session Count: 5 NoLUIDS: 0 OutOfRange: 0 AuthFail: 0 EncryptFail: 0 Rescan Req: 3
FrameNumber: 477 Color Code: 35 BeaconVersion: 1 SectorUserCount: N/A
Frequency: 5840 NumULHalfSlots: 36 NumDLHalfSlots: 38 NumULContSlots: 1

There is an issue with the 7.3.6 if your bh’s are collocted with other units


that could be the problem, the master end of this unit has another
BH20 at the same location… Strange thing is that the other BH20
link does not show this problem and it runs the same sw ver…

Is the a documented fix or workaround anywhere??

I also noticed another difference, this BH20 link has quite a
high latency (when compared to the other BH20 at the same location)…

Ping between the BM20-master and slave are 20-50ms… The other
BH20 link pings around 2-6ms… However the link test shows 100%
efficency on up and down… I thought I’d mention that too, is that
also a 7.3.6 co-location problem?

thanks so much…

Downgrade the software to 7.1.4, or wait for the ver. 8.

What does the spectrum analyzer says?