Snom 301 issue

why am i having issues with a few of my snom 301’s ? any help would be great .

-- Unregistered SIP '211'

[May 14 09:31:57] WARNING[2690]: chan_sip.c:8112 check_auth: username mismatch, have <201>, digest has <211>
[May 14 09:31:57] NOTICE[2690]: chan_sip.c:14294 handle_request_subscribe: Failed to authenticate user sip:201@192.168.1.200;tag=ocrhebx1y5 for SUBSCRIBE
– Unregistered SIP ‘211’
– Registered SIP ‘211’ at 192.168.1.201 port 2051 expires 3600
– Saved useragent “snom300/6.2.3” for peer 211
[May 14 09:31:57] WARNING[2690]: chan_sip.c:8112 check_auth: username mismatch, have <201>, digest has <211>
[May 14 09:31:57] NOTICE[2690]: chan_sip.c:14294 handle_request_subscribe: Failed to authenticate user sip:201@192.168.1.200;tag=ocrhebx1y5 for SUBSCRIBE
[May 14 09:32:17] WARNING[2690]: chan_sip.c:1899 retrans_pkt: Maximum retries exceeded on transmission 3c40c1a75a55-xmunqnzvrizb@snom300-0004132558E6 for seqno 1935 (Critical Response)
[May 14 09:32:17] WARNING[2690]: chan_sip.c:1899 retrans_pkt: Maximum retries exceeded on transmission 3c40c1a75a55-xmunqnzvrizb@snom300-0004132558E6 for seqno 1937 (Critical Response)
localhost*CLI> \

ok i guess no one can answer this question … …

any help would be greatly appreciated …
Randy