无线自动断开

fang1 · ‎05-08-2020

公司笔记本连接无线有时候自动断开，要手动连接好几次才能连接成功，这是怎么回事呢? AC是2504 AP是CAP3502I-A-K9

Rps-Cheers · ‎05-08-2020

可否提供如下信息：
掉线的客户端的MAC地址。
show sysinfo
show wlan x
show msglog
show traplog
客户端掉线的时候，重新连接的时候采集debug.
debug client
采集完毕debug disable-all

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rps-Cheers | If it solves your problem, please mark as answer. Thanks !

fang1 · ‎05-08-2020

(Cisco Controller) >show sysinfo
Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 8.5.161.0
Bootloader Version............................... 1.0.20
Field Recovery Image Version..................... 7.6.101.1
Firmware Version................................. PIC 20.0
OUI File Last Update Time........................ Sun Sep 07 10:44:07 IST 2014
Build Type....................................... DATA + WPS
System Name...................................... YYSTWLC
System Location..................................
System Contact...................................
System ObjectID.................................. 1.3.6.1.4.1.9.1.1279
IP Address....................................... 192.168.2.254
IPv6 Address..................................... ::
Last Reset....................................... Power on reset
System Up Time................................... 7 days 23 hrs 45 mins 26 secs
System Timezone Location......................... (GMT +8:00) HongKong, Bejing, Chongquing
--More-- or (q)uit
System Stats Realtime Interval................... 5
System Stats Normal Interval..................... 180
Configured Country............................... Multiple Countries : CN,US
Operating Environment............................ Commercial (0 to 40 C)
Internal Temp Alarm Limits....................... 0 to 65 C
Internal Temperature............................. +46 C
External Temperature............................. +51 C
Fan Status....................................... 72 rpm
State of 802.11b Network......................... Enabled
State of 802.11a Network......................... Enabled
Number of WLANs.................................. 3
Number of Active Clients......................... 15
OUI Classification Failure Count................. 461
Memory Current Usage............................. 39
Memory Average Usage............................. 39
CPU Current Usage................................ 0
CPU Average Usage................................ 0
Flash Type....................................... Compact Flash Card
--More-- or (q)uit
Flash Size....................................... 1073741824
Burned-in MAC Address............................ DC:CE:C1:10:6F:40
Maximum number of APs supported.................. 75
System Nas-Id....................................
WLC MIC Certificate Types........................ SHA1/SHA2

fang1 · ‎05-08-2020

(Cisco Controller) >show wlan 1
WLAN Identifier.................................. 1
Profile Name..................................... YYST
Network Name (SSID).............................. YYST
Status........................................... Enabled
MAC Filtering.................................... Disabled
Broadcast SSID................................... Enabled
AAA Policy Override.............................. Disabled
Network Admission Control
Client Profiling Status
Radius Profiling ............................ Disabled
DHCP ....................................... Disabled
HTTP ....................................... Disabled
Local Profiling ............................. Disabled
DHCP ....................................... Disabled
HTTP ....................................... Disabled
Radius-NAC State............................... Disabled
SNMP-NAC State................................. Disabled
Quarantine VLAN................................ 0
Maximum Clients Allowed.......................... Unlimited
Security Group Tag............................... Unknown(0)
--More-- or (q)uit
Maximum number of Clients per AP Radio........... 200
ATF Policy....................................... 0
Number of Active Clients......................... 12
Exclusionlist Timeout............................ 60 seconds
Session Timeout.................................. 1800 seconds
User Idle Timeout................................ Disabled
Sleep Client..................................... disable
Sleep Client Timeout............................. 720 minutes
Web Auth Captive Bypass Mode..................... None
User Idle Threshold.............................. 0 Bytes
NAS-identifier................................... none
CHD per WLAN..................................... Enabled
Webauth DHCP exclusion........................... Disabled
Interface........................................ management
Multicast Interface.............................. Not Configured
WLAN IPv4 ACL.................................... unconfigured
WLAN IPv6 ACL.................................... unconfigured
WLAN Layer2 ACL.................................. unconfigured
mDNS Status...................................... Disabled
mDNS Profile Name................................ unconfigured
DHCP Server...................................... Default
Central NAT Peer-Peer Blocking................... Unknown
DHCP Address Assignment Required................. Disabled
--More-- or (q)uit
Static IP client tunneling....................... Disabled
Tunnel Profile................................... Unconfigured
Quality of Service............................... Silver
Per-SSID Rate Limits............................. Upstream Downstream
Average Data Rate................................ 0 0
Average Realtime Data Rate....................... 0 0
Burst Data Rate.................................. 0 0
Burst Realtime Data Rate......................... 0 0
Per-Client Rate Limits........................... Upstream Downstream
Average Data Rate................................ 0 0
Average Realtime Data Rate....................... 0 0
Burst Data Rate.................................. 0 0
Burst Realtime Data Rate......................... 0 0
Scan Defer Priority.............................. 4,5,6
Scan Defer Time.................................. 100 milliseconds
WMM.............................................. Allowed
WMM UAPSD Compliant Client Support............... Disabled
Media Stream Multicast-direct.................... Disabled
CCX - AironetIe Support.......................... Enabled
CCX - Gratuitous ProbeResponse (GPR)............. Disabled
CCX - Diagnostics Channel Capability............. Disabled
Dot11-Phone Mode (7920).......................... Disabled
Wired Protocol................................... 802.1P (Tag=0)
--More-- or (q)uit
Passive Client Feature........................... Disabled
Peer-to-Peer Blocking Action..................... Disabled
Radio Policy..................................... All
DTIM period for 802.11a radio.................... 1
DTIM period for 802.11b radio.................... 1
Radius Servers
Authentication................................ Global Servers
Accounting.................................... Global Servers
Interim Update............................. Enabled
Interim Update Interval.................... 0
Framed IPv6 Acct AVP ...................... Prefix
Dynamic Interface............................. Disabled
Dynamic Interface Priority.................... wlan
Local EAP Authentication......................... Enabled (Profile 'YYST')
Radius NAI-Realm................................. Disabled
Mu-Mimo.......................................... Enabled
Security
802.11 Authentication:........................ Open System
FT Support.................................... Enabled
Static WEP Keys............................... Disabled
802.1X........................................ Disabled
Wi-Fi Protected Access (WPA/WPA2)............. Enabled
--More-- or (q)uit
WPA (SSN IE)............................... Disabled
WPA2 (RSN IE).............................. Enabled
TKIP Cipher............................. Disabled
AES Cipher.............................. Enabled
CCMP256 Cipher.......................... Disabled
GCMP128 Cipher.......................... Disabled
GCMP256 Cipher.......................... Disabled
OSEN IE.................................... Disabled
Auth Key Management
802.1x.................................. Disabled
PSK..................................... Enabled
CCKM.................................... Disabled
FT-1X(802.11r).......................... Disabled
FT-PSK(802.11r)......................... Enabled
PMF-1X(802.11w)......................... Disabled
PMF-PSK(802.11w)........................ Disabled
OSEN-1X................................. Disabled
SUITEB-1X............................... Disabled
SUITEB192-1X............................ Disabled
FT Reassociation Timeout................... 20
FT Over-The-DS mode........................ Enabled
GTK Randomization.......................... Disabled
SKC Cache Support.......................... Disabled
--More-- or (q)uit
CCKM TSF Tolerance......................... 1000
Wi-Fi Direct policy configured................ Disabled
EAP-Passthrough............................... Disabled
CKIP ......................................... Disabled
Web Based Authentication...................... Disabled
Web Authentication Timeout.................... 300
Web-Passthrough............................... Disabled
Mac-auth-server............................... 0.0.0.0
Web-portal-server............................. 0.0.0.0
qrscan-des-key................................
Conditional Web Redirect...................... Disabled
Splash-Page Web Redirect...................... Disabled
Auto Anchor................................... Disabled
FlexConnect Local Switching................... Enabled
FlexConnect Central Association............... Disabled
flexconnect Central Dhcp Flag................. Disabled
flexconnect nat-pat Flag...................... Disabled
flexconnect Dns Override Flag................. Disabled
flexconnect PPPoE pass-through................ Disabled
flexconnect local-switching IP-source-guar.... Disabled
FlexConnect Vlan based Central Switching ..... Disabled
FlexConnect Local Authentication.............. Disabled
FlexConnect Learn IP Address.................. Enabled
--More-- or (q)uit
Client MFP.................................... Optional
PMF........................................... Disabled
PMF Association Comeback Time................. 1
PMF SA Query RetryTimeout..................... 200
Tkip MIC Countermeasure Hold-down Timer....... 60
Eap-params.................................... Disabled
AVC Visibilty.................................... Enabled
AVC Profile Name................................. None
OpenDns Profile Name............................. None
OpenDns Wlan Mode................................ ignore
Flow Monitor Name................................ None
Split Tunnel Configuration
Split Tunnel................................. Disabled
Call Snooping.................................... Disabled
Roamed Call Re-Anchor Policy..................... Disabled
SIP CAC Fail Send-486-Busy Policy................ Enabled
SIP CAC Fail Send Dis-Association Policy......... Disabled
KTS based CAC Policy............................. Disabled
Assisted Roaming Prediction Optimization......... Disabled
802.11k Neighbor List............................ Disabled
802.11k Neighbor List Dual Band.................. Disabled
802.11v Directed Multicast Service............... Disabled
802.11v BSS Max Idle Service..................... Enabled
--More-- or (q)uit
802.11v BSS Transition Service................... Disabled
802.11v BSS Transition Disassoc Imminent......... Disabled
802.11v BSS Transition Disassoc Timer............ 200
802.11v BSS Transition OpRoam Disassoc Timer..... 40
DMS DB is empty
Band Select...................................... Enabled
Load Balancing................................... Client-Count Based
Multicast Buffer................................. Disabled
Universal Ap Admin............................... Disabled
Broadcast Tagging................................ Disabled
PRP.............................................. Disabled
Mobility Anchor List
WLAN ID IP Address Status Priority
------- --------------- ------ --------
802.11u........................................ Disabled
MSAP Services.................................. Disabled
Local Policy
----------------
Priority Policy Name
--More-- or (q)uit
-------- ---------------
QoS Fastlane Status.............................. Disable
Selective Reanchoring Status..................... Disable
Lobby Admin Access............................... Disabled
Fabric Status
--------------
Fabric status.................................... Disable
Vnid Name........................................
Vnid............................................. 0
Applied SGT Tag.................................. 0
Peer Ip Address.................................. 0.0.0.0
Flex Acl Name....................................
Flex Avc Policy Name.............................
U3-Interface................................... Disable
U3-Reporting Interval.......................... 30

fang1 · ‎05-08-2020

(Cisco Controller) >show msglog
Message Log Severity Level ...................... ERROR
*Dot1x_NW_MsgTask_5: May 08 18:41:49.968: %DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:452 Invalid replay counter from client 7c:a1:ae:ce:40:95 - got 00 00 00 00 00 00 00 00, expected 00 00 00 00 00 00 00 01
*spamApTask4: May 08 18:26:18.882: %LWAPP-3-REPLAY_ERR: spam_lrad.c:45310 The system has received replay error on slot 1, WLAN ID 1, count 1 from AP 3c:ce:73:f7:be:f0
*spamApTask4: May 08 17:34:34.491: %LWAPP-3-REPLAY_ERR: spam_lrad.c:45310 The system has received replay error on slot 1, WLAN ID 1, count 4 from AP 3c:ce:73:f7:be:f0
*spamApTask4: May 08 15:39:10.036: %LWAPP-3-REPLAY_ERR: spam_lrad.c:45310 The system has received replay error on slot 1, WLAN ID 1, count 1 from AP 3c:ce:73:f7:be:f0
*Dot1x_NW_MsgTask_3: May 08 15:28:23.606: %DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:452 Invalid replay counter from client d4:61:da:0b:16:a3 - got 00 00 00 00 00 00 00 02, expected 00 00 00 00 00 00 00 03
*spamApTask6: May 08 15:07:06.387: %LWAPP-3-REPLAY_ERR: spam_lrad.c:45310 The system has received replay error on slot 1, WLAN ID 1, count 8 from AP 34:bd:c8:e3:7c:40
*Dot1x_NW_MsgTask_2: May 08 14:39:08.006: %DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:452 Invalid replay counter from client 90:8c:43:76:90:3a - got 00 00 00 00 00 00 00 02, expected 00 00 00 00 00 00 00 03
*Dot1x_NW_MsgTask_3: May 08 14:28:08.030: %DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:452 Invalid replay counter from client d4:61:da:0b:16:a3 - got 00 00 00 00 00 00 00 02, expected 00 00 00 00 00 00 00 03
*Dot1x_NW_MsgTask_2: May 08 14:25:05.024: %DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:452 Invalid replay counter from client 60:f8:1d:ba:14:5a - got 00 00 00 00 00 00 00 02, expected 00 00 00 00 00 00 00 00
*Dot1x_NW_MsgTask_2: May 08 14:24:51.847: %DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:452 Invalid replay counter from client 60:f8:1d:ba:14:5a - got 00 00 00 00 00 00 00 02, expected 00 00 00 00 00 00 00 00
*spamApTask6: May 08 14:01:26.928: %LWAPP-3-REPLAY_ERR: spam_lrad.c:45310 The system has received replay error on slot 1, WLAN ID 1, count 2 from AP 34:bd:c8:e3:7c:40
*spamApTask4: May 08 13:57:40.209: %LWAPP-3-REPLAY_ERR: spam_lrad.c:45310 The system has received replay error on slot 1, WLAN ID 5, count 1 from AP 3c:ce:73:f7:be:f0
*apfMsConnTask_2: May 08 13:50:06.692: %APF-3-PREAUTH_FAILURE: apf_80211.c:14785 There is no PMK cache entry for clientac:88:fd:83:c9:ba. Can't do preauth
*Dot1x_NW_MsgTask_3: May 08 13:38:11.516: %DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:452 Invalid replay counter from client d4:61:da:0b:16:a3 - got 00 00 00 00 00 00 00 02, expected 00 00 00 00 00 00 00 03
*Dot1x_NW_MsgTask_2: May 08 12:32:15.429: %DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:452 Invalid replay counter from client ac:88:fd:83:c9:ba - got 00 00 00 00 00 00 00 02, expected 00 00 00 00 00 00 00 03

fang1 · ‎05-08-2020

(Cisco Controller) >show traplog
Number of Traps Since Last Reset ............ 48677
Number of Traps Since Log Last Displayed .... 3
Client Traps Statistics
Client Association Traps .................... 0
Client Disassociation Traps ................. 0
Client Authentication Traps ................. 0
Client Deauthentication Traps ............... 0
Client Association Fail Traps ............... 0
Client Authnetication Fail Traps ............ 0
Station Authnetication Fail Traps ........... 0
Client Excluded Traps ....................... 6
Client Static IP Fail Traps ................. 0
Association Fail Traps ...................... 0
Associate Fail Traps ........................ 0
Client Association Data Stats Traps ......... 0
Client Disassociation Data Stats Traps ...... 0
Client Association NAC Alert Traps .......... 0
Client Web Auth User Login Traps ............ 0
Client Web Auth User Logout Traps ........... 0
--More-- or (q)uit
Client Enhanced Traps Sent Since Reset ............. 0
Client Association Enhanced Traps .................. 0
Client Association Enhanced Traps Send Fail ........ 0
Client Deauthentication Enhanced Traps ............. 0
Client Deauthentication Enhanced Traps Send Fail ... 0
Client Authentication Enhanced Traps ............... 0
Client Authentication Enhanced Traps Send Fail ..... 0
Client Stats Enhanced Traps ........................ 0
Client Stats Enhanced Traps Send Fail .............. 0
AP Traps Statistics
AP Interface Up Traps ............. 43
AP Interface Down Traps ........... 37
AP Associated Traps ............... 3
AP Disassociated Traps ............ 0
Log System Time Trap
--- ------------------------ -------------------------------------------------
0 Fri May 8 19:10:33 2020 Rogue AP : 50:fa:84:81:0c:95 removed from Base R
adio MAC : 34:bd:c8:e3:7c:40 Interface no:0(802.1
1n(2.4 GHz))
1 Fri May 8 19:10:33 2020 Rogue AP : 44:2c:05:1d:c6:dd removed from Base R
--More-- or (q)uit
adio MAC : 3c:ce:73:f7:be:f0 Interface no:0(802.1
1n(2.4 GHz))
2 Fri May 8 19:10:30 2020 Rogue AP: 48:a4:72:e4:d0:90 detected on Base Radi
o MAC: 3c:ce:73:f7:be:f0 Interface no: 0(802.11n(
2.4 GHz)) Channel: 1 RSSI: -81 SNR: 1 Classificat
ion: unclassified, State: Alert, RuleClassified :
N, Severity Score: 0, RuleName: N.A. ,Classified
AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
3 Fri May 8 19:10:11 2020 Rogue AP: 94:b4:0f:4d:2d:63 detected on Base Radi
o MAC: 3c:ce:73:49:fa:a0 Interface no: 0(802.11n(
2.4 GHz)) Channel: 11 RSSI: -87 SNR: 8 Classifica
tion: unclassified, State: Alert, RuleClassified
: N, Severity Score: 0, RuleName: N.A. ,Classifie
d AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
Would you like to display more entries? (y/n) y
Log System Time Trap
--- ------------------------ -------------------------------------------------
4 Fri May 8 19:10:08 2020 Load Util Profile Failed for Base Radio MAC: 34:b
d:c8:e3:7c:40 and slotNo: 0 current 87 threshold
80
5 Fri May 8 19:10:06 2020 Rogue AP: 42:1a:a9:bd:5c:18 detected on Base Radi
o MAC: 3c:ce:73:49:fa:a0 Interface no: 0(802.11n(
2.4 GHz)) Channel: 6 RSSI: -76 SNR: 3 Classificat
ion: unclassified, State: Alert, RuleClassified :
N, Severity Score: 0, RuleName: N.A. ,Classified
AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
6 Fri May 8 19:10:00 2020 Rogue AP: c4:3a:35:ca:34:87 detected on Base Radi
o MAC: 34:bd:c8:e3:7c:40 Interface no: 0(802.11n(
2.4 GHz)) Channel: 6 RSSI: -79 SNR: 5 Classificat
ion: unclassified, State: Alert, RuleClassified :
N, Severity Score: 0, RuleName: N.A. ,Classified
AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
7 Fri May 8 19:09:59 2020 Rogue AP : 04:4f:4c:d8:9c:0a removed from Base R
adio MAC : 3c:ce:73:49:fa:a0 Interface no:0(802.1
1n(2.4 GHz))
--More-- or (q)uit
Would you like to display more entries? (y/n) y
Log System Time Trap
--- ------------------------ -------------------------------------------------
8 Fri May 8 19:09:55 2020 Rogue AP: 42:1a:a9:bd:5c:19 detected on Base Radi
o MAC: 3c:ce:73:49:fa:a0 Interface no: 0(802.11n(
2.4 GHz)) Channel: 6 RSSI: -76 SNR: 1 Classificat
ion: unclassified, State: Alert, RuleClassified :
N, Severity Score: 0, RuleName: N.A. ,Classified
AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
9 Fri May 8 19:09:44 2020 Rogue AP : c2:18:30:4a:ab:de removed from Base R
adio MAC : 34:bd:c8:e3:7c:40 Interface no:0(802.1
1n(2.4 GHz))
10 Fri May 8 19:09:39 2020 Noise Profile Updated to Pass for Base Radio MAC:
34:bd:c8:e3:7c:40 and slotNo: 0
11 Fri May 8 19:09:36 2020 Rogue AP : c6:bb:4c:05:23:88 removed from Base R
adio MAC : 34:bd:c8:e3:7c:40 Interface no:0(802.1
1n(2.4 GHz))

fang1 · ‎05-08-2020

1540488497lcj 发表于 2020-5-8 18:44
可否提供如下信息：
掉线的客户端的MAC地址。
show sysinfo

大佬能先帮忙看看吗

Rps-Cheers · ‎05-08-2020

fang 发表于 2020-5-8 19:13
大佬能先帮忙看看吗

目前我看到的情况：不知是否正确，如不对请纠正。
1、8.5.161目前属于suggested版本了。
2、该SSID使用PSK认证。
3、这条log
*apfMsConnTask_2: May 08 13:50:06.692: %APF-3-PREAUTH_FAILURE: apf_80211.c:14785 There is no PMK cache entry for clientac:88:fd:83:c9:ba. Can't do preauth
说明——No PMK cache entry for the client. Hence cannot do preauth. Client will associate after performing full authentication.
4、traplog中存在Client Excluded Traps ....................... 6
应该有客户端被exclude的情况，默认应该得有60s才能被释放出来。可能当时你的客户端是不是正处于exclude的状态，所以连不上。
具体的话，还是当遇到具体问题的时候，确认客户端的MAC地址，采集：show msglog、show traplog、show exclusionlist.
debug 信息: debug client
show client detail

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rps-Cheers | If it solves your problem, please mark as answer. Thanks !

fang1 · ‎05-09-2020

1540488497lcj 发表于 2020-5-8 21:05
目前我看到的情况：不知是否正确，如不对请纠正。
1、8.5.161目前属于suggested版本了。
2、该SSID使用 ...

大佬您分析的是很到位的，那3和4存在的问题有什么办法解决吗？求您再指点，感谢！

Rps-Cheers · ‎05-09-2020

fang 发表于 2020-5-9 22:23
大佬您分析的是很到位的，那3和4存在的问题有什么办法解决吗？求您再指点，感谢！

客户端被exclude，可能原因不单一。建议还是出故障的时候，具体看看当时的log，加上故障时候的debug比较好，另外，这个故障很普遍吗？故障是不是只在AP3502下出现呢，其他新一点的AP有没有问题？

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rps-Cheers | If it solves your problem, please mark as answer. Thanks !

Rps-Cheers · ‎05-12-2020

fang 发表于 2020-5-9 22:23
大佬您分析的是很到位的，那3和4存在的问题有什么办法解决吗？求您再指点，感谢！

怎么样，有确认到信息吗？

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rps-Cheers | If it solves your problem, please mark as answer. Thanks !

fang1 · ‎05-13-2020

1540488497lcj 发表于 2020-5-12 21:46
怎么样，有确认到信息吗？

debug 客户端没有输出信息。是不是要客户端掉线了那一秒马上debug呢

fang1 · ‎05-13-2020

1540488497lcj 发表于 2020-5-12 21:46
怎么样，有确认到信息吗？

大佬请问一下 CleanAir开启会对这种情况有影响吗

Rps-Cheers · ‎05-13-2020

fang 发表于 2020-5-13 16:10
debug 客户端没有输出信息。是不是要客户端掉线了那一秒马上debug呢

看到开始的问题是，要连好几次才能成功嘛。这样的话，可以在连接的时候debug，看看是什么原因连不上。
另外，也可以开着debug,一旦掉线了，可以看到是什么原因掉线的。
>config sessions timeout 0 开启不超时

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Rps-Cheers · ‎05-13-2020

fang 发表于 2020-5-13 16:30
大佬请问一下 CleanAir开启会对这种情况有影响吗

按照我的理解，CleanAir主要用来防御RFI问题，如果是由于无线环境不好，通过自身主动进行防御而导致客户端下线的话。这也是一个可能是一个问题。

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rps-Cheers | If it solves your problem, please mark as answer. Thanks !