Date: Sun, 9 Nov 2025 16:57:58 -0800 From: Kevin Oberman <rkoberman@gmail.com> To: "Bjoern A. Zeeb" <bz@freebsd.org> Cc: FreeBSD Wireless <freebsd-wireless@freebsd.org> Subject: Re: Intel Alder Lake iwlwifi update Message-ID: <CAN6yY1tA7uszES%2BwfkqWgeNdYUa7e_w6ubA_SNw7FfqiMMchbA@mail.gmail.com> In-Reply-To: <CAN6yY1t4c=_1L_WV%2BsPCyW5OaY66%2B6uzcCqm3NirzrWoo5qMPg@mail.gmail.com> References: <CAN6yY1t9PFgkfN%2B%2BKOhToeJe-rwS2B%2Be=FOWsJZ8zQcde8fqdw@mail.gmail.com> <CAJ-VmokNVysPQ8R_KqiCNr0kFt6qV6ei5rS1pP8X%2B-m6Dvs0RA@mail.gmail.com> <CAN6yY1uvU8L1AUBQ5f9R4UYH-x%2B5vK%2BLfUUzGQaRTJiyTVh-zA@mail.gmail.com> <60o437or-p084-3ps6-os5r-s4626p275ss6@SerrOFQ.bet> <CAN6yY1vxP-TTVaj4eDs7%2Bth8zqJiJSJ0rUn3HEakv3d4wCDfOg@mail.gmail.com> <28rs4nnq-s3ps-0qn7-06pp-678n085q4966@serrofq.bet> <CAN6yY1sWbji%2BQP1xmfPoS95HFxpjbd7tDwsJ9EpUcYGEiSsa6Q@mail.gmail.com> <CAN6yY1sggiB17DCKifctLycVJDC=MNtL-mWPLjq4OcXqz2_EYA@mail.gmail.com> <8po35006-24p9-9sqq-q801-16931rsr3735@serrofq.bet> <CAN6yY1t%2B3r2qgJ5kEkB%2BcLduPpPvg_F8K5f7C5qt_7q5Osgf3A@mail.gmail.com> <CAN6yY1t4c=_1L_WV%2BsPCyW5OaY66%2B6uzcCqm3NirzrWoo5qMPg@mail.gmail.com>
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[-- Attachment #1 --] On Sat, Jun 28, 2025 at 8:24 PM Kevin Oberman <rkoberman@gmail.com> wrote: > On Fri, Jun 27, 2025 at 10:47 PM Kevin Oberman <rkoberman@gmail.com> > wrote: > >> On Fri, Jun 27, 2025 at 3:53 PM Bjoern A. Zeeb <bz@freebsd.org> wrote: >> >>> On Fri, 27 Jun 2025, Kevin Oberman wrote: >>> >>> > Sorry that this took so long. I finally got around to trying an iperf3 >>> test >>> > and it looks just about the same my speedtest. I am really surprised >>> at the >>> > upload speed. It's about what I was seeing using netspeed, but that is >>> > about at my max upload of 40M. ifconfig shows media: IEEE 802.11 >>> Wireless >>> > Ethernet VHT mode 11ac. >>> >>> I assume the channel is equally vht/80 and the linuxkpi sysctl would not >>> show anything else as before. >>> >>> >>> Your Cwnd stays very low. Can you try UDP as well? >>> >>> >>> A normal TX run here: >>> >>> [ ID] Interval Transfer Bitrate Retr Cwnd >>> [ 5] 0.00-1.01 sec 95.8 MBytes 797 Mbits/sec 0 1.62 MBytes >>> [ 5] 1.01-2.01 sec 99.8 MBytes 836 Mbits/sec 0 1.62 MBytes >>> [ 5] 2.01-3.01 sec 99.6 MBytes 837 Mbits/sec 0 1.62 MBytes >>> [ 5] 3.01-4.01 sec 101 MBytes 842 Mbits/sec 0 1.62 MBytes >>> [ 5] 4.01-5.00 sec 98.6 MBytes 835 Mbits/sec 0 1.62 MBytes >>> [ 5] 5.00-6.00 sec 100 MBytes 839 Mbits/sec 0 1.62 MBytes >>> [ 5] 6.00-7.00 sec 100 MBytes 839 Mbits/sec 0 1.62 MBytes >>> [ 5] 7.00-8.01 sec 94.5 MBytes 790 Mbits/sec 0 1.62 MBytes >>> [ 5] 8.01-9.01 sec 101 MBytes 847 Mbits/sec 0 1.62 MBytes >>> [ 5] 9.01-10.01 sec 100 MBytes 840 Mbits/sec 0 1.62 MBytes >>> - - - - - - - - - - - - - - - - - - - - - - - - - >>> [ ID] Interval Transfer Bitrate Retr >>> [ 5] 0.00-10.01 sec 991 MBytes 831 Mbits/sec 0 >>> sender >>> [ 5] 0.00-10.02 sec 991 MBytes 830 Mbits/sec >>> receiver >>> >>> >>> And a TX run with retransmit (you can see the recovery): >>> >>> [ ID] Interval Transfer Bitrate Retr Cwnd >>> [ 5] 0.00-1.00 sec 90.2 MBytes 753 Mbits/sec 0 1.62 MBytes >>> [ 5] 1.00-2.03 sec 73.0 MBytes 600 Mbits/sec 0 1.62 MBytes >>> [ 5] 2.03-3.01 sec 49.0 MBytes 417 Mbits/sec 271 313 KBytes >>> [ 5] 3.01-4.00 sec 43.0 MBytes 364 Mbits/sec 0 483 KBytes >>> [ 5] 4.00-5.00 sec 47.0 MBytes 394 Mbits/sec 0 615 KBytes >>> [ 5] 5.00-6.06 sec 58.9 MBytes 466 Mbits/sec 0 729 KBytes >>> [ 5] 6.06-7.01 sec 54.1 MBytes 480 Mbits/sec 0 811 KBytes >>> [ 5] 7.01-8.00 sec 89.4 MBytes 752 Mbits/sec 0 871 KBytes >>> [ 5] 8.00-9.00 sec 98.8 MBytes 829 Mbits/sec 0 914 KBytes >>> [ 5] 9.00-10.01 sec 98.0 MBytes 817 Mbits/sec 0 943 KBytes >>> - - - - - - - - - - - - - - - - - - - - - - - - - >>> [ ID] Interval Transfer Bitrate Retr >>> [ 5] 0.00-10.01 sec 702 MBytes 588 Mbits/sec 271 >>> sender >>> [ 5] 0.00-10.02 sec 702 MBytes 587 Mbits/sec >>> receiver >>> >>> >>> >>> Here's the server side for a -R run (RX as seen from client side): >>> >>> [ ID] Interval Transfer Bitrate Retr Cwnd >>> [ 5] 0.00-1.01 sec 25.4 MBytes 212 Mbits/sec 0 752 KBytes >>> [ 5] 1.01-2.00 sec 23.5 MBytes 198 Mbits/sec 0 795 KBytes >>> [ 5] 2.00-3.00 sec 23.5 MBytes 197 Mbits/sec 0 835 KBytes >>> [ 5] 3.00-4.01 sec 21.9 MBytes 183 Mbits/sec 0 873 KBytes >>> [ 5] 4.01-5.01 sec 22.2 MBytes 187 Mbits/sec 0 908 KBytes >>> [ 5] 5.01-6.00 sec 23.1 MBytes 195 Mbits/sec 0 944 KBytes >>> [ 5] 6.00-7.01 sec 27.0 MBytes 225 Mbits/sec 0 983 KBytes >>> [ 5] 7.01-8.01 sec 23.4 MBytes 196 Mbits/sec 0 1017 KBytes >>> [ 5] 8.01-9.01 sec 23.2 MBytes 195 Mbits/sec 0 1.02 MBytes >>> [ 5] 9.01-10.01 sec 26.4 MBytes 221 Mbits/sec 0 1.13 MBytes >>> [ 5] 10.01-10.01 sec 128 KBytes 606 Mbits/sec 0 1.13 MBytes >>> >>> >>> -- >>> Bjoern A. Zeeb r15:7 >>> >> >> Since both directions were the same, I'll keep it short. >> Transmit (Upload): >> [ ID] Interval Transfer Bitrate Jitter >> Lost/Total Datagrams >> [ 5] 0.00-10.00 sec 1.25 MBytes 1.05 Mbits/sec 0.000 ms 0/899 >> (0%) sender >> [ 5] 0.00-10.00 sec 1.25 MBytes 1.05 Mbits/sec 0.275 ms 0/899 >> (0%) receiver >> Receive (Download): >> [ ID] Interval Transfer Bitrate Jitter >> Lost/Total Datagrams >> [ 5] 0.00-10.00 sec 1.25 MBytes 1.05 Mbits/sec 0.000 ms 0/898 >> (0%) sender >> [ 5] 0.00-10.00 sec 1.25 MBytes 1.05 Mbits/sec 0.572 ms 0/898 >> (0%) receiver >> > > Been too long since I used iperf2 and this is the first time I've used > iperf3. Forgot to set the bitrate, do it defaulted to 1Mbs. > Download still sucks. > [ ID] Interval Transfer Bitrate Jitter Lost/Total > Datagrams > [ 5] 0.00-10.00 sec 59.6 MBytes 50.0 Mbits/sec 0.000 ms 0/42824 > (0%) sender > [ 5] 0.00-10.00 sec 38.8 MBytes 32.5 Mbits/sec 0.403 ms > 12592/40453 (31%) receiver > Upload looks much better: > [ ID] Interval Transfer Bitrate Jitter Lost/Total > Datagrams > [ 5] 0.00-10.00 sec 715 MBytes 600 Mbits/sec 0.000 ms 0/513750 > (0%) sender > [ 5] 0.00-12.55 sec 715 MBytes 478 Mbits/sec 0.099 ms 0/513750 > (0%) receiver > > Really annoying that the download speed is what I'd like to see improved. > Router? It's an old ASUS released in 2016. > -- > Kevin Oberman, Part time kid herder and retired Network Engineer > E-mail: rkoberman@gmail.com > PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683 > Some things fixed a couple of issues I've had. 1. I can now associate with a 5g network even though a 2.4g is available. It also shows up in "list aps" output. wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=0 ether 70:a8:d3:df:3c:de inet 192.168.1.5 netmask 0xffffff00 broadcast 192.168.1.255 inet6 fe80::72a8:d3ff:fedf:3cde%wlan0 prefixlen 64 scopeid 0x3 groups: wlan ssid xxxxxx_5G channel 157 (5785 MHz 11a vht/80+) bssid c0:89:ab:60:ae:63 regdomain FCC country US authmode WPA2/802.11i privacy ON deftxkey UNDEF AES-CCM 3:128-bit AES-CCM ucast:128-bit txpower 17 bmiss 7 mcastrate 6 mgmtrate 6 scanvalid 60 ampdutx -ampdurx ampdulimit 64k ampdudensity 4 -amsdutx amsdurx shortgi -ldpctx ldpcrx -uapsd vht vht40 vht80 vht160 -vht80p80 wme roaming MANUAL parent interface: iwlwifi0 media: IEEE 802.11 Wireless Ethernet VHT mode 11ac status: associated nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL> 2. Using the same router that would only associate with TKIP, now AES-CCM works with no issues. So two issues seem to be fixed. Still a problem with poor download speeds. Using either Ookla Speedtest or iperf3, I get excellent upload speed (100M on my Frontier connection) but only 40M download. I get faster upload on my lan, but download still is limited to about 40M. -- Kevin Oberman, Part time kid herder and retired Network Engineer E-mail: rkoberman@gmail.com PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683 [-- Attachment #2 --] <div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">On Sat, Jun 28, 2025 at 8:24 PM Kevin Oberman <<a href="mailto:rkoberman@gmail.com">rkoberman@gmail.com</a>> wrote:</div></div><div class="gmail_quote gmail_quote_container"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-family:tahoma,sans-serif;font-size:small">On Fri, Jun 27, 2025 at 10:47 PM Kevin Oberman <<a href="mailto:rkoberman@gmail.com" target="_blank">rkoberman@gmail.com</a>> wrote:</div></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div style="font-family:tahoma,sans-serif;font-size:small">On Fri, Jun 27, 2025 at 3:53 PM Bjoern A. Zeeb <<a href="mailto:bz@freebsd.org" target="_blank">bz@freebsd.org</a>> wrote:</div></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Fri, 27 Jun 2025, Kevin Oberman wrote:<br> <br> > Sorry that this took so long. I finally got around to trying an iperf3 test<br> > and it looks just about the same my speedtest. I am really surprised at the<br> > upload speed. It's about what I was seeing using netspeed, but that is<br> > about at my max upload of 40M. ifconfig shows media: IEEE 802.11 Wireless<br> > Ethernet VHT mode 11ac.<br> <br> I assume the channel is equally vht/80 and the linuxkpi sysctl would not<br> show anything else as before.<br> <br> <br> Your Cwnd stays very low. Can you try UDP as well?<br> <br> <br> A normal TX run here:<br> <br> [ ID] Interval Transfer Bitrate Retr Cwnd<br> [ 5] 0.00-1.01 sec 95.8 MBytes 797 Mbits/sec 0 1.62 MBytes<br> [ 5] 1.01-2.01 sec 99.8 MBytes 836 Mbits/sec 0 1.62 MBytes<br> [ 5] 2.01-3.01 sec 99.6 MBytes 837 Mbits/sec 0 1.62 MBytes<br> [ 5] 3.01-4.01 sec 101 MBytes 842 Mbits/sec 0 1.62 MBytes<br> [ 5] 4.01-5.00 sec 98.6 MBytes 835 Mbits/sec 0 1.62 MBytes<br> [ 5] 5.00-6.00 sec 100 MBytes 839 Mbits/sec 0 1.62 MBytes<br> [ 5] 6.00-7.00 sec 100 MBytes 839 Mbits/sec 0 1.62 MBytes<br> [ 5] 7.00-8.01 sec 94.5 MBytes 790 Mbits/sec 0 1.62 MBytes<br> [ 5] 8.01-9.01 sec 101 MBytes 847 Mbits/sec 0 1.62 MBytes<br> [ 5] 9.01-10.01 sec 100 MBytes 840 Mbits/sec 0 1.62 MBytes<br> - - - - - - - - - - - - - - - - - - - - - - - - -<br> [ ID] Interval Transfer Bitrate Retr<br> [ 5] 0.00-10.01 sec 991 MBytes 831 Mbits/sec 0 sender<br> [ 5] 0.00-10.02 sec 991 MBytes 830 Mbits/sec receiver<br> <br> <br> And a TX run with retransmit (you can see the recovery):<br> <br> [ ID] Interval Transfer Bitrate Retr Cwnd<br> [ 5] 0.00-1.00 sec 90.2 MBytes 753 Mbits/sec 0 1.62 MBytes<br> [ 5] 1.00-2.03 sec 73.0 MBytes 600 Mbits/sec 0 1.62 MBytes<br> [ 5] 2.03-3.01 sec 49.0 MBytes 417 Mbits/sec 271 313 KBytes<br> [ 5] 3.01-4.00 sec 43.0 MBytes 364 Mbits/sec 0 483 KBytes<br> [ 5] 4.00-5.00 sec 47.0 MBytes 394 Mbits/sec 0 615 KBytes<br> [ 5] 5.00-6.06 sec 58.9 MBytes 466 Mbits/sec 0 729 KBytes<br> [ 5] 6.06-7.01 sec 54.1 MBytes 480 Mbits/sec 0 811 KBytes<br> [ 5] 7.01-8.00 sec 89.4 MBytes 752 Mbits/sec 0 871 KBytes<br> [ 5] 8.00-9.00 sec 98.8 MBytes 829 Mbits/sec 0 914 KBytes<br> [ 5] 9.00-10.01 sec 98.0 MBytes 817 Mbits/sec 0 943 KBytes<br> - - - - - - - - - - - - - - - - - - - - - - - - -<br> [ ID] Interval Transfer Bitrate Retr<br> [ 5] 0.00-10.01 sec 702 MBytes 588 Mbits/sec 271 sender<br> [ 5] 0.00-10.02 sec 702 MBytes 587 Mbits/sec receiver<br> <br> <br> <br> Here's the server side for a -R run (RX as seen from client side):<br> <br> [ ID] Interval Transfer Bitrate Retr Cwnd<br> [ 5] 0.00-1.01 sec 25.4 MBytes 212 Mbits/sec 0 752 KBytes<br> [ 5] 1.01-2.00 sec 23.5 MBytes 198 Mbits/sec 0 795 KBytes<br> [ 5] 2.00-3.00 sec 23.5 MBytes 197 Mbits/sec 0 835 KBytes<br> [ 5] 3.00-4.01 sec 21.9 MBytes 183 Mbits/sec 0 873 KBytes<br> [ 5] 4.01-5.01 sec 22.2 MBytes 187 Mbits/sec 0 908 KBytes<br> [ 5] 5.01-6.00 sec 23.1 MBytes 195 Mbits/sec 0 944 KBytes<br> [ 5] 6.00-7.01 sec 27.0 MBytes 225 Mbits/sec 0 983 KBytes<br> [ 5] 7.01-8.01 sec 23.4 MBytes 196 Mbits/sec 0 1017 KBytes<br> [ 5] 8.01-9.01 sec 23.2 MBytes 195 Mbits/sec 0 1.02 MBytes<br> [ 5] 9.01-10.01 sec 26.4 MBytes 221 Mbits/sec 0 1.13 MBytes<br> [ 5] 10.01-10.01 sec 128 KBytes 606 Mbits/sec 0 1.13 MBytes<br> <br> <br> -- <br> Bjoern A. Zeeb r15:7<br> </blockquote></div><div><br clear="all"></div><div style="font-family:tahoma,sans-serif;font-size:small">Since both directions were the same, I'll keep it short.</div><div style="font-family:tahoma,sans-serif;font-size:small">Transmit (Upload):<br>[ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams<br>[ 5] 0.00-10.00 sec 1.25 MBytes 1.05 Mbits/sec 0.000 ms 0/899 (0%) sender<br>[ 5] 0.00-10.00 sec 1.25 MBytes 1.05 Mbits/sec 0.275 ms 0/899 (0%) receiver</div><div style="font-family:tahoma,sans-serif;font-size:small">Receive (Download):</div><div style="font-family:tahoma,sans-serif;font-size:small">[ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams<br>[ 5] 0.00-10.00 sec 1.25 MBytes 1.05 Mbits/sec 0.000 ms 0/898 (0%) sender<br>[ 5] 0.00-10.00 sec 1.25 MBytes 1.05 Mbits/sec 0.572 ms 0/898 (0%) receiver</div></div></blockquote><div><br></div><div style="font-family:tahoma,sans-serif;font-size:small">Been too long since I used iperf2 and this is the first time I've used iperf3. Forgot to set the bitrate, do it defaulted to 1Mbs. </div><div style="font-family:tahoma,sans-serif;font-size:small">Download still sucks.</div><div style="font-family:tahoma,sans-serif;font-size:small">[ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams<br>[ 5] 0.00-10.00 sec 59.6 MBytes 50.0 Mbits/sec 0.000 ms 0/42824 (0%) sender<br>[ 5] 0.00-10.00 sec 38.8 MBytes 32.5 Mbits/sec 0.403 ms 12592/40453 (31%) receiver<br></div><div style="font-family:tahoma,sans-serif;font-size:small">Upload looks much better:</div><div style="font-family:tahoma,sans-serif;font-size:small">[ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams<br>[ 5] 0.00-10.00 sec 715 MBytes 600 Mbits/sec 0.000 ms 0/513750 (0%) sender<br>[ 5] 0.00-12.55 sec 715 MBytes 478 Mbits/sec 0.099 ms 0/513750 (0%) receiver<br><br></div><div style="font-family:tahoma,sans-serif;font-size:small">Really annoying that the download speed is what I'd like to see improved. Router? It's an old ASUS released in 2016.</div></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Kevin Oberman, Part time kid herder and retired Network Engineer<br>E-mail: <a href="mailto:rkoberman@gmail.com" target="_blank">rkoberman@gmail.com</a><br></div><div>PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683</div></div></div></div></div></div></div></div></div> </div> </blockquote></div><div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default">Some things fixed a couple of issues I've had.</div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default"><br></div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default">1. I can now associate with a 5g network even though a 2.4g is available. It also shows up in "list aps" output.</div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default">wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500<br> options=0<br> ether 70:a8:d3:df:3c:de<br> inet 192.168.1.5 netmask 0xffffff00 broadcast 192.168.1.255<br> inet6 fe80::72a8:d3ff:fedf:3cde%wlan0 prefixlen 64 scopeid 0x3<br> groups: wlan<br> ssid xxxxxx_5G channel 157 (5785 MHz 11a vht/80+) bssid c0:89:ab:60:ae:63<br> regdomain FCC country US authmode WPA2/802.11i privacy ON<br> deftxkey UNDEF AES-CCM 3:128-bit AES-CCM ucast:128-bit txpower 17<br> bmiss 7 mcastrate 6 mgmtrate 6 scanvalid 60 ampdutx -ampdurx<br> ampdulimit 64k ampdudensity 4 -amsdutx amsdurx shortgi -ldpctx ldpcrx<br> -uapsd vht vht40 vht80 vht160 -vht80p80 wme roaming MANUAL<br> parent interface: iwlwifi0<br> media: IEEE 802.11 Wireless Ethernet VHT mode 11ac<br> status: associated<br> nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL><br><br></div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default">2. Using the same router that would only associate with TKIP, now AES-CCM works with no issues. </div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default"><br></div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default">So two issues seem to be fixed.</div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default"><br></div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default">Still a problem with poor download speeds. Using either Ookla Speedtest or iperf3, I get excellent upload speed (100M on my Frontier connection) but only 40M download. I get faster upload on my lan, but download still is limited to about 40M.</div></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Kevin Oberman, Part time kid herder and retired Network Engineer<br>E-mail: <a href="mailto:rkoberman@gmail.com" target="_blank">rkoberman@gmail.com</a><br></div><div>PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683</div></div></div></div></div></div></div></div></div>home | help
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