Reprinted from the product is slightly Library http://www.pinlue.com/article/2020/04/0422/1510106027335.html
1, roaming unsuccessful
(1) checks the roaming condition is satisfied, if the same SSID, encryption password is the same, whether there is overlap between the AP region;
(2) 10.x version roaming three local forwarding, to check whether all ap in the same broadcast domain, the joint port isolation switch is configured to block communication between the ap; version 11.x local forwarding three roaming , ensure communication between ap; (3) 10.x version does not support roaming between different wlan-id, to check whether the configuration; overlap region between the densely deployed (4) ap stronger signal must be low power ; (5) to adjust the sensitivity of the roaming terminal card. (6) ap / ac upgrade to the latest version
2 , Web authentication is unsuccessful
(1) According to an embodiment of the through check whether the correct configuration
(2) to see if there is an authentication failure log on the authentication server, the authentication failed to find the cause of authentication failure log from inside
(3) View from the ac whether there is an authentication failure log, for example, AAA reject log, indicating that the server is denied, need to contact the server side to check why refuse certification;
(4) on the ac interconnection port and server capture, view the entire interactive web authentication process, whether the packet exchange less, and view the error code.
3 , the signal is not good
If (1) Check the ap tunnel up there, whether normal signals
(2) the power to maximum test signal is normal
(3) confirm the antenna feed line connection is normal, may try replacing the normal antenna and feeder test
(4) whether the test signal with a point of the wall, an obstacle such as a metal block, as far as possible when testing the antenna or the positive test at ap 1m;
(5) replacing a plurality of terminals, and a plurality of test signals ap strength, eliminate the problem of the individual terminals and individual ap
(6) Cycle power to see whether the reply signal
(7) ap / ac upgrade to the latest version
4 , Suman
(1) ping network gateway, to see if there is a large delay and packet loss, if the delay is normal, there is no packet loss, can be connected to a wired computer (user configured address of the wireless network) test speed is normal, the switch checks whether there loop, arp attack
(2) if the network gateway Ping large delay and packet loss, as do first basic wireless optimized, disabling the low rate, channel diverge, due to lower power, if there is interference around the scanning wifi, close interference wifi, reasonable speed ;
(3) the signal strength of the terminal is normal to see, whether there will be the problem of weak signal, if there is weak signal in accordance with at troubleshooting steps to troubleshoot
Whether peripheral (4) check counter ap, turn off the test (typically around observed whether there are other manufacturers may attempt to turn off the test ap)
Whether rate (5) Check the terminal negotiation will be low, if you have been very low, it is likely to interfere with the larger
(6) Check for interference from non-wifi devices microwave therapy, microwave ovens, Bluetooth, etc.
