Kernel warning: agg-tx.c:694 ieee80211_start_tx_ba_cb

Ich habe zu Hause 2 Router (841N und 841ND), beide praktisch identisch konfiguriert. Einer scheint nicht richtig zu funktionieren, mein MacBook meckert wenn ich in der Nähe von dem einen bin immer, dass kein Internetzugriff möglich wäre. dmesg spuckt auf dem problematischen Gerät folgendes aus (auf dem anderen Gerät keine Auffälligkeiten):

[    0.000000] Linux version 3.10.36 (nazco@zeus) (gcc version 4.8.3 (OpenWrt/Linaro GCC 4.8-2014.04 r41096) ) #1 Tue Jun 10 15:46:18 CEST 2014
[    0.000000] MyLoader: sysp=a4048a00, boardp=20142508, parts=4a012040
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU revision is: 00019374 (MIPS 24Kc)
[    0.000000] SoC: Qualcomm Atheros QCA9533 rev 1
[    0.000000] Clocks: CPU:550.000MHz, DDR:396.826MHz, AHB:198.413MHz, Ref:25.000MHz
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 02000000 @ 00000000 (usable)
[    0.000000] Initrd not found or empty - disabling initrd
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x00000000-0x01ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00000000-0x01ffffff]
[    0.000000] On node 0 totalpages: 8192
[    0.000000] free_area_init_node: node 0, pgdat 8030c9b0, node_mem_map 81000000                                                                                                                                                   
[    0.000000]   Normal zone: 64 pages used for memmap                                                                                                                                                                              
[    0.000000]   Normal zone: 0 pages reserved                                                                                                                                                                                      
[    0.000000]   Normal zone: 8192 pages, LIFO batch:0                                                                                                                                                                              
[    0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.                                                                                                                                                      
[    0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes                                                                                                                                               
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768                                                                                                                                                                        
[    0.000000] pcpu-alloc: [0] 0                                                                                                                                                                                                    
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 8128                                                                                                                                            
[    0.000000] Kernel command line:  board=TL-WR841N-v9 console=ttyS0,115200 rootfstype=squashfs,jffs2 noinitrd                                                                                                                     
[    0.000000] PID hash table entries: 128 (order: -3, 512 bytes)                                                                                                                                                                   
[    0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)                                                                                                                                                        
[    0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)                                                                                                                                                          
[    0.000000] Writing ErrCtl register=00000000                                                                                                                                                                                     
[    0.000000] Readback ErrCtl register=00000000                                                                                                                                                                                    
[    0.000000] Memory: 28784k/32768k available (2231k kernel code, 3984k reserved, 594k data, 244k init, 0k highmem)                                                                                                                
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:51
[    0.050000] Calibrating delay loop... 366.18 BogoMIPS (lpj=1830912)
[    0.060000] pid_max: default: 32768 minimum: 301
[    0.060000] Mount-cache hash table entries: 512
[    0.070000] NET: Registered protocol family 16
[    0.070000] MIPS: machine is TP-LINK TL-WR841N/ND v9
[    0.490000] bio: create slab <bio-0> at 0
[    0.490000] Switching to clocksource MIPS
[    0.500000] NET: Registered protocol family 2
[    0.500000] TCP established hash table entries: 512 (order: 0, 4096 bytes)
[    0.510000] TCP bind hash table entries: 512 (order: -1, 2048 bytes)
[    0.520000] TCP: Hash tables configured (established 512 bind 512)
[    0.520000] TCP: reno registered
[    0.530000] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.530000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.540000] NET: Registered protocol family 1
[    0.540000] PCI: CLS 0 bytes, default 32
[    0.560000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.560000] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.570000] msgmni has been set to 56
[    0.580000] io scheduler noop registered
[    0.580000] io scheduler deadline registered (default)
[    0.590000] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
[    0.610000] serial8250.0: ttyS0 at MMIO 0x18020000 (irq = 11) is a 16550A
[    0.620000] console [ttyS0] enabled, bootconsole disabled
[    0.630000] ath79-spi ath79-spi: master is unqueued, this is deprecated
[    0.640000] m25p80 spi0.0: found w25q32, expected m25p80
[    0.650000] m25p80 spi0.0: w25q32 (4096 Kbytes)
[    0.650000] 5 tp-link partitions found on MTD device spi0.0
[    0.660000] Creating 5 MTD partitions on "spi0.0":
[    0.660000] 0x000000000000-0x000000020000 : "u-boot"
[    0.670000] 0x000000020000-0x00000011df5c : "kernel"
[    0.680000] mtd: partition "kernel" must either start or end on erase block boundary or be smaller than an erase block -- forcing read-only
[    0.690000] 0x00000011df5c-0x0000003f0000 : "rootfs"
[    0.700000] mtd: partition "rootfs" must either start or end on erase block boundary or be smaller than an erase block -- forcing read-only
[    0.710000] mtd: device 2 (rootfs) set to be root filesystem
[    0.720000] 1 squashfs-split partitions found on MTD device rootfs
[    0.720000] 0x000000390000-0x0000003f0000 : "rootfs_data"
[    0.730000] 0x0000003f0000-0x000000400000 : "art"
[    0.740000] 0x000000020000-0x0000003f0000 : "firmware"
[    0.770000] libphy: ag71xx_mdio: probed
[    1.320000] ag71xx-mdio.1: Found an AR934X built-in switch
[    2.360000] eth0: Atheros AG71xx at 0xba000000, irq 5, mode:GMII
[    2.920000] ag71xx ag71xx.0: connected to PHY at ag71xx-mdio.1:04 [uid=004dd042, driver=Generic PHY]
[    2.930000] eth1: Atheros AG71xx at 0xb9000000, irq 4, mode:MII
[    2.940000] TCP: cubic registered
[    2.940000] NET: Registered protocol family 17
[    2.950000] 8021q: 802.1Q VLAN Support v1.8
[    2.960000] VFS: Mounted root (squashfs filesystem) readonly on device 31:2.
[    2.970000] Freeing unused kernel memory: 244K (80323000 - 80360000)
[    5.290000] usbcore: registered new interface driver usbfs
[    5.290000] usbcore: registered new interface driver hub
[    5.300000] usbcore: registered new device driver usb
[    5.310000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    5.320000] ehci-platform: EHCI generic platform driver
[    5.320000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[   10.060000] jffs2: notice: (316) jffs2_build_xattr_subsystem: complete building xattr subsystem, 1 of xdatum (0 unchecked, 0 orphan) and 23 of xref (0 dead, 4 orphan) found.
[   12.260000] NET: Registered protocol family 10
[   12.270000] tun: Universal TUN/TAP device driver, 1.6
[   12.280000] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[   12.290000] nf_conntrack version 0.5.0 (453 buckets, 1812 max)
[   12.310000] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   12.330000] batman_adv: B.A.T.M.A.N. advanced 2013.4.0 (compatibility version 14) loaded
[   12.350000] u32 classifier
[   12.360000]     input device check on
[   12.360000]     Actions configured
[   12.370000] Mirror/redirect action on
[   12.380000] Failed to load ipt action
[   12.410000] Loading modules backported from Linux version master-2014-05-22-0-gf2032ea
[   12.420000] Backport generated by backports.git backports-20140320-37-g5c33da0
[   12.430000] ip_tables: (C) 2000-2006 Netfilter Core Team
[   12.520000] xt_time: kernel timezone is -0000
[   12.550000] cfg80211: Calling CRDA to update world regulatory domain
[   12.570000] cfg80211: World regulatory domain updated:
[   12.570000] cfg80211:  DFS Master region: unset
[   12.570000] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   12.590000] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   12.590000] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   12.600000] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[   12.610000] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   12.620000] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   12.630000] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[   12.770000] PPP generic driver version 2.4.2
[   12.770000] NET: Registered protocol family 24
[   12.910000] ath: EEPROM regdomain: 0x0
[   12.910000] ath: EEPROM indicates default country code should be used
[   12.910000] ath: doing EEPROM country->regdmn map search
[   12.910000] ath: country maps to regdmn code: 0x3a
[   12.910000] ath: Country alpha2 being used: US
[   12.910000] ath: Regpair used: 0x3a
[   12.930000] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[   12.930000] ieee80211 phy0: Atheros AR9531 Rev:1 mem=0xb8100000, irq=2
[   13.000000] cfg80211: Calling CRDA for country: US
[   13.000000] cfg80211: Regulatory domain changed to country: US
[   13.010000] cfg80211:  DFS Master region: FCC
[   13.010000] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   13.020000] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 3000 mBm), (N/A)
[   13.030000] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 1700 mBm), (N/A)
[   13.040000] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz), (N/A, 2300 mBm), (0 s)
[   13.050000] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)
[   13.050000] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[   18.390000] HTB: quantum of class 10001 is big. Consider r2q change.
[   18.410000] HTB: quantum of class 10010 is big. Consider r2q change.
[   18.430000] HTB: quantum of class 10020 is big. Consider r2q change.
[   18.450000] HTB: quantum of class 10030 is big. Consider r2q change.
[   23.330000] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   23.330000] device eth0 entered promiscuous mode
[   23.350000] IPv6: ADDRCONF(NETDEV_UP): br-freifunk: link is not ready
[   23.370000] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[   23.370000] device eth1 entered promiscuous mode
[   23.380000] IPv6: ADDRCONF(NETDEV_UP): br-wan: link is not ready
[   23.750000] batman_adv: bat0: Adding interface: mesh-vpn
[   23.760000] batman_adv: bat0: The MTU of interface mesh-vpn is too small (1350) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1528 would solve the problem.
[   23.780000] batman_adv: bat0: Interface activated: mesh-vpn
[   23.790000] device bat0 entered promiscuous mode
[   23.800000] br-freifunk: port 2(bat0) entered forwarding state
[   23.800000] br-freifunk: port 2(bat0) entered forwarding state
[   23.810000] IPv6: ADDRCONF(NETDEV_CHANGE): br-freifunk: link becomes ready
[   24.090000] batman_adv: bat0: Changing gw mode from: off to: client
[   24.090000] batman_adv: bat0: orig_interval: Changing from: 1000 to: 5000
[   24.480000] cfg80211: Calling CRDA for country: DE
[   24.480000] cfg80211: Regulatory domain changed to country: DE
[   24.490000] cfg80211:  DFS Master region: ETSI
[   24.490000] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   24.500000] cfg80211:   (2400000 KHz - 2483000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   24.510000] cfg80211:   (5150000 KHz - 5350000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   24.520000] cfg80211:   (5470000 KHz - 5725000 KHz @ 80000 KHz), (N/A, 2700 mBm), (0 s)
[   24.530000] cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[   25.800000] br-freifunk: port 2(bat0) entered forwarding state
[   26.510000] IPv6: ADDRCONF(NETDEV_UP): wlan0-2: link is not ready
[   26.510000] device wlan0-2 entered promiscuous mode
[   26.660000] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   26.690000] wlan0: Created IBSS using preconfigured BSSID 02:ba:00:00:00:01
[   26.700000] wlan0: Creating new IBSS network, BSSID 02:ba:00:00:00:01
[   26.710000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   26.770000] IPv6: ADDRCONF(NETDEV_UP): wlan0-1: link is not ready
[   27.500000] batman_adv: bat0: Adding interface: wlan0
[   27.500000] batman_adv: bat0: Interface activated: wlan0
[   28.150000] wlan0-1: authenticate with 24:65:11:65:f2:ad
[   28.160000] wlan0-1: send auth to 24:65:11:65:f2:ad (try 1/3)
[   28.180000] wlan0-1: authenticated
[   28.200000] wlan0-1: associate with 24:65:11:65:f2:ad (try 1/3)
[   28.210000] wlan0-1: RX AssocResp from 24:65:11:65:f2:ad (capab=0x31 status=0 aid=4)
[   28.220000] wlan0-1: associated
[   28.220000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0-1: link becomes ready
[   28.270000] br-freifunk: port 3(wlan0-2) entered forwarding state
[   28.280000] br-freifunk: port 3(wlan0-2) entered forwarding state
[   28.280000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0-2: link becomes ready
[   30.280000] br-freifunk: port 3(wlan0-2) entered forwarding state
[38832.790000] net_ratelimit: 36 callbacks suppressed
[38837.880000] net_ratelimit: 28 callbacks suppressed
[40086.100000] ath: phy0: Failed to stop TX DMA, queues=0x004!
[40088.130000] ath: phy0: Failed to stop TX DMA, queues=0x005!
[40099.600000] ath: phy0: Failed to stop TX DMA, queues=0x004!
[40102.640000] ath: phy0: Failed to stop TX DMA, queues=0x005!
[40106.660000] ath: phy0: Failed to stop TX DMA, queues=0x005!
[40112.680000] ath: phy0: Failed to stop TX DMA, queues=0x005!
[40308.670000] ath: phy0: Failed to stop TX DMA, queues=0x005!
[43682.840000] net_ratelimit: 40 callbacks suppressed
[59089.620000] net_ratelimit: 278 callbacks suppressed
[63250.260000] net_ratelimit: 151 callbacks suppressed
[71059.460000] net_ratelimit: 2 callbacks suppressed
[75803.710000] ------------[ cut here ]------------
[75803.720000] WARNING: at /home/nazco/dev/openwrt/build_dir/target-mips_34kc_uClibc-0.9.33.2/linux-ar71xx_generic/compat-wireless-2014-05-22/net/mac80211/agg-tx.c:694 ieee80211_start_tx_ba_cb+0xbc/0x12c [mac80211]()
[75803.740000] Modules linked in: ath9k ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv4 mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_nat_irc nf_nat_ftp nf_nat nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp iptable_raw iptable_mangle iptable_filter ipt_REJECT ip_tables crc_ccitt compat em_nbyte sch_prio sch_dsmark sch_gred sch_htb sch_teql em_cmp cls_basic act_ipt em_text em_meta sch_codel sch_tbf sch_sfq act_police sch_red act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_hfsc sch_ingress ledtrig_usbdev batman_adv libcrc32c crc16 ip6t_REJECT ip6table_raw ip6table_mangle ip6table_filter ip6_tables x_tables nf_conntrack_ipv6 nf_conntrack nf_defrag_ipv6 tun ipv6 arc4 crypto_blkcipher ohci_hcd ehci_platform ehci_hcd gpio_button_hotplug usbcore nls_base usb_common crc32c crypto_hash
[75803.830000] CPU: 0 PID: 5342 Comm: kworker/u2:1 Not tainted 3.10.36 #1
[75803.840000] Workqueue: phy0 ieee80211_ibss_leave [mac80211]
[75803.840000] Stack : 80f43200 802bf450 80e0b8c8 000002b6 80e49d54 80e4a884 00000000 81838810
[75803.840000]    80e4a968 80078f34 000014de 800931e4 80b0f818 80e4a884 802cdfb8 817f7d34
[75803.840000]    817f7d34 80078f34 00000003 8008f514 80e49d54 00000000 00000005 801acfd0
[75803.840000]    00000000 00000000 00000000 00000000 00000000 00000000 70687930 00000000
[75803.840000]    00000000 00000000 00000000 00000000 80cfb500 80cfb600 80e1044c 817f7ce0
[75803.840000]    ...
[75803.880000] Call Trace:
[75803.880000] [<8006e200>] show_stack+0x48/0x70
[75803.890000] [<80076ab0>] warn_slowpath_common+0x78/0xa8
[75803.890000] [<80076b68>] warn_slowpath_null+0x18/0x24
[75803.900000] [<80e0b8c8>] ieee80211_start_tx_ba_cb+0xbc/0x12c [mac80211]
[75803.910000] [<80e10528>] ieee80211_ibss_leave+0xbd0/0x153c [mac80211]
[75803.910000] 
[75803.920000] ---[ end trace c4c16c6ea45ee68a ]---
[84201.620000] net_ratelimit: 9 callbacks suppressed
[119147.140000] net_ratelimit: 4 callbacks suppressed
[119526.880000] net_ratelimit: 223 callbacks suppressed
[140556.240000] net_ratelimit: 17 callbacks suppressed
[316710.120000] net_ratelimit: 29 callbacks suppressed
[316790.880000] net_ratelimit: 13 callbacks suppressed
[316823.170000] net_ratelimit: 14 callbacks suppressed
[316828.730000] net_ratelimit: 35 callbacks suppressed
[407391.640000] net_ratelimit: 112 callbacks suppressed
[417165.550000] ath: phy0: Failed to stop TX DMA, queues=0x005!
[425828.400000] net_ratelimit: 13 callbacks suppressed
[536218.940000] net_ratelimit: 18 callbacks suppressed
[553367.510000] net_ratelimit: 3 callbacks suppressed
[568854.140000] net_ratelimit: 47 callbacks suppressed
[574955.270000] net_ratelimit: 52 callbacks suppressed
[575854.510000] net_ratelimit: 4 callbacks suppressed
[575860.090000] net_ratelimit: 127 callbacks suppressed
[600135.710000] net_ratelimit: 4 callbacks suppressed
[618310.010000] ------------[ cut here ]------------
[618310.020000] WARNING: at /home/nazco/dev/openwrt/build_dir/target-mips_34kc_uClibc-0.9.33.2/linux-ar71xx_generic/compat-wireless-2014-05-22/net/mac80211/agg-tx.c:694 ieee80211_start_tx_ba_cb+0xbc/0x12c [mac80211]()
[618310.040000] Modules linked in: ath9k ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv4 mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_nat_irc nf_nat_ftp nf_nat nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp iptable_raw iptable_mangle iptable_filter ipt_REJECT ip_tables crc_ccitt compat em_nbyte sch_prio sch_dsmark sch_gred sch_htb sch_teql em_cmp cls_basic act_ipt em_text em_meta sch_codel sch_tbf sch_sfq act_police sch_red act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_hfsc sch_ingress ledtrig_usbdev batman_adv libcrc32c crc16 ip6t_REJECT ip6table_raw ip6table_mangle ip6table_filter ip6_tables x_tables nf_conntrack_ipv6 nf_conntrack nf_defrag_ipv6 tun ipv6 arc4 crypto_blkcipher ohci_hcd ehci_platform ehci_hcd gpio_button_hotplug usbcore nls_base usb_common crc32c crypto_hash
[618310.130000] CPU: 0 PID: 15549 Comm: kworker/u2:2 Tainted: G        W    3.10.36 #1
[618310.140000] Workqueue: phy0 ieee80211_ibss_leave [mac80211]
[618310.140000] Stack : 80940680 802bf450 80e0b8c8 000002b6 80e49d54 80e4a884 00000000 81838810
[618310.140000]           80e4a968 80078f34 00003cbd 800931e4 80b0def8 80e4a884 802cdfb8 8095dd34
[618310.140000]           8095dd34 80078f34 00000003 8008f514 80e49d54 00000000 00000005 801acfd0
[618310.140000]           00000000 00000000 00000000 00000000 00000000 00000000 70687930 00000000
[618310.140000]           00000000 00000000 00000000 00000000 80cfb500 80cfb600 80e1044c 8095dce0
[618310.140000]           ...
[618310.180000] Call Trace:
[618310.180000] [<8006e200>] show_stack+0x48/0x70
[618310.190000] [<80076ab0>] warn_slowpath_common+0x78/0xa8
[618310.190000] [<80076b68>] warn_slowpath_null+0x18/0x24
[618310.200000] [<80e0b8c8>] ieee80211_start_tx_ba_cb+0xbc/0x12c [mac80211]
[618310.210000] [<80e10528>] ieee80211_ibss_leave+0xbd0/0x153c [mac80211]
[618310.210000] 
[618310.220000] ---[ end trace c4c16c6ea45ee68b ]---
[642372.440000] net_ratelimit: 7 callbacks suppressed
[642405.370000] net_ratelimit: 83 callbacks suppressed
[642411.880000] net_ratelimit: 11 callbacks suppressed
[642704.060000] net_ratelimit: 62 callbacks suppressed
root@leahsheim-006:~# 

Kann damit jemand etwas anfangen? Eher etwas für das OpenWRT-Forum?

Muss ich mir mal in ruhe angucken. Auf die schnelle kann ich da nix sagen. Hast du das richtige Image geflashed? Also richtiges Modell in der richtigen Hardware Version? Und ist der nicht funktionierende Router über LAN angeschlossen oder nur via Mesh?

Einer der Router ist V9, der andere V9.2 (kann jetzt leider gerade nicht sagen, welcher welcher ist).

Beide ohne LAN aber mit WLAN-Uplink zur Fritz!Box im Client-Mode.

Wie wir im Wiki schon schreiben ist es eher eine Notlösung den Uplink via WLAN zu realisieren. Das hat den Grund, das es häufig zu genau den von dir beschriebenen und weiteren Problemen führt. Im Falle eines Uplinks via WLAN muss ein Datenpaket 2 mal durch die Luft, dass macht es schon deutlich anfälliger gegen Störungen. Dazu kommt, dass der Router dann über drei Netze multiplexen muss (Client Netz, Mesh und Uplink). Dazu muss, wie ebenfalls im Wiki erwähnt der Kanal der Fritz!Box auch auf eins gestellt werden, da es sonst zu Problemen kommt. Das wiederum führt aber dazu, das die sogenannte “Airtime” also die Zeit in der die “Luft” frei zum senden ist immer weniger wird. Resultierend daraus geht die Qualität der Verbindung runter.
Zusammengefasst empfehle ich dir vom Uplink via WLAN auf eine Uplink via LAN umzustellen. Das sollte dein Problem lösen.

Wiki-Link: https://w.ffrn.de/doku.php?id=anleitungen:uplink_via_wlan_einrichten

Mein MacBook macht jetzt auch Probleme, wenn obige Warnung nicht aufgetaucht ist. Irgendwie vermute ich, dass das an Yosemite liegt, es sind da scheinbar viele Leute von unterschiedlichsten WLAN-Problemen betroffen. Das komische ist, dass das MacBook IPv4- und IPv6-Adressen bekommt, man auch über beite Protokolle pingen kann und eigentlich alles funktioniert! Trotzdem kommt dann der Dialog “Verbindung zu wlan-netzwerk freifunk-rhein-neckar.de konnte nicht hergestellt werden”.

Seltsam. Sobald ich näheres dazu rausfinde, mache ich einen neuen Thread auf, da die beiden Problem scheinbar nicht zusammenhängen.