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2862n wifi thru'put repeatedly drops below 1Mbps - why?

  • dottedquad
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10 Dec 2018 12:49 #93527 by dottedquad
2862n wifi thru'put repeatedly drops below 1Mbps - why? was created by dottedquad
I have a 2862n running firmware 3.8.9.1_BT at home.
In 'Wireless LAN >> General setup', I have the following settings:
Mode: Mixed (11g + 11n)
Channel: 11, 2462 MHz

Every 1 or 2 weeks the WiFi throughput drops to a crawl (< 1 Mbps). Restarting the 2862 cures the problem for a while.

Has anyone seen this issue before?

In case it helps diagnosis, when this problem happens the 2862n's syslog output contains loads of WLAN_DBG messages. E.g.:

2018-12-09 08:19:34 DrayTek: WLAN_DBG - WPA handshake start for [mac address of my nexus 7]
2018-12-09 08:19:34 DrayTek: WLAN_DBG - send MSG 4-1 packet in 4-way handshake
2018-12-09 08:19:34 DrayTek: WLAN_DBG - MLME Associate MAC [mac address of my nexus 7]
2018-12-09 08:19:34 DrayTek: WLAN_DBG - Rx message 2 in 4-way handshake
2018-12-09 08:19:34 DrayTek: WLAN_DBG - send MSG 4-3 packet in 4-way handshake
2018-12-09 08:19:34 DrayTek: WLAN_DBG - Rx message 4 in 4-way handshake
2018-12-09 08:19:34 DrayTek: WLAN_DBG - WPA handshake finish for [mac address of my nexus 7]
2018-12-09 08:20:20 DrayTek: WLAN_DBG - MLME Disassoc MAC [mac address of my nexus 7]
2018-12-09 08:20:20 DrayTek: WLAN_DBG - Wpa_session_stop



What do these messages mean?

Any help/suggestions gratefully received!

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