[FS#4132] whole network crashes under specific conditions (Attachment added)

[OpenWrt Bugs]

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User who did this - luva (iluvatyr) 

Attached to Project - OpenWrt/LEDE Project
Summary - whole network crashes under specific conditions
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - High
Priority - Very Low
Reported Version - openwrt-21.02
Due in Version - Undecided
Due Date - Undecided
Details - Supply the following if possible:
 - Device problem occurs on: TP-LINK Archer C7 v5
 - Software versions of OpenWrt: OpenWrt 21.02
 - Packages: ath10k-board-qca988x ath10k-firmware-qca988x-ct base-files block-mount busybox ca-bundle cgi-io curl ddns-scripts ddns-scripts-cloudflare ddns-scripts-services dnsmasq dropbear etherwake firewall fstools fwtool getrandom hostapd-common ip6tables iptables iw iwinfo jshn jsonfilter kernel kmod-ath kmod-ath10k-ct kmod-ath9k kmod-ath9k-common kmod-cfg80211 kmod-crypto-crc32c kmod-crypto-hash kmod-fs-ext4 kmod-gpio-button-hotplug kmod-hwmon-core kmod-ip6tables kmod-ipt-conntrack kmod-ipt-core kmod-ipt-nat kmod-ipt-offload kmod-lib-crc-ccitt kmod-lib-crc16 kmod-mac80211 kmod-nf-conntrack kmod-nf-conntrack-netlink kmod-nf-conntrack6 kmod-nf-flow kmod-nf-ipt kmod-nf-ipt6 kmod-nf-nat kmod-nf-reject kmod-nf-reject6 kmod-nfnetlink kmod-nls-base kmod-phy-ath79-usb kmod-ppp kmod-pppoe kmod-pppox kmod-slhc kmod-usb-core kmod-usb-ehci kmod-usb-ledtrig-usbport kmod-usb2 libblobmsg-json20210516 libc libcurl4 libgcc1 libip4tc2 libip6tc2 libiwinfo-data libiwinfo-lua libiwinfo20210430 libjson-c5 libjson-script20210516 liblua5.1.5 liblucihttp-lua liblucihttp0 libnghttp2-14 libnl-tiny1 libopenssl1.1 libpthread libubox20210516 libubus-lua libubus20210630 libuci20130104 libuclient20201210 libustream-wolfssl20201210 libwolfssl4.7.0.66253b90 libwolfssl4.8.1.66253b90 libxtables12 logd lua luci luci-app-ddns luci-app-firewall luci-app-nlbwmon luci-app-opkg luci-base luci-compat luci-lib-base luci-lib-ip luci-lib-ipkg luci-lib-jsonc luci-lib-nixio luci-mod-admin-full luci-mod-network luci-mod-status luci-mod-system luci-proto-ipv6 luci-proto-ppp luci-ssl luci-theme-bootstrap mtd netifd nlbwmon odhcp6c odhcpd-ipv6only openssh-sftp-server openwrt-keyring opkg ppp ppp-mod-pppoe procd px5g-wolfssl rpcd rpcd-mod-file rpcd-mod-iwinfo rpcd-mod-luci rpcd-mod-rrdns sudo swconfig uboot-envtools ubox ubus ubusd uci uclient-fetch uhttpd uhttpd-mod-ubus urandom-seed urngd usign wireless-regdb wpad-basic-wolfssl zlib

 - Further configuration: Port Forwardings and Firewall configurations to allow HTTPS and HTTP and SSH to another server in homenetwork connected via Cable to LAN PORT.

 - Steps to reproduce: 
               Configuration is: 
               192.168.0.2 Router 192.168.1.1 --> Plex Server 192.168.1.2
               192.168.0.2 Router 192.168.1.1 --> Plex Client (Fire TV Stick) 192.168.1.55
   When starting a connection from the Fire TV Stick as Plex Client to watch something from my Plex Server, I can load Plex normally, I can start a movie/series or else. Then I only get half a second of video output, then the whole internet shuts down and recovers for about 5 minutes until its usable again. Not just for the firetv stick. For every device connected to the router.
I had the exact same configuration and Router on OpenWrt 19.07 and there everything worked as intended. Im also not sure if the dmesg.log shows the errors of the error describing or something else. Lets find out

 

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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=4132

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