[SR-Users] i use the csipsimple registrar kamailio get request time out

[vast]

Hi,
I registrar kamailio ofen can registrar .but at other wifi some time i use the csipsimple registrar kamailio get request time out . when i look up the log I have found 


ERROR: registrar [save.c:692]: update_contacts(): invalid cseq for aor <1008>
I search on google but can`t find a good answer. some one tell me it's not a same callid and low cseq .
what would i do for this error ?
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