OpenWrt 21.02.0 second release candidate

with the proper linksys wrt wifi was working good 866MBit.
now since v21 it is not working with RDP, stop videos on facebook, something changed.

@jow has found another report which may suggest some software regression indeed. Please check 21.02.0-rc2 WRT3200ACM wireless is broken and help debugging that problem further in linked topic.


yes this is what i am talking about. it looks like the problem with mwlwifi is since kernel above 5.3

I would assume that 21.02 will stay on a 5.4 kernel. Of course the third number will change for the final release or any upcoming release candidates.

@rmilecki on Totolink x5000r configuration autogenerated with "wifi config" doesn't work correctly
I filled bug report at and added output of 'ls'

Upgraded FRITZ!Box 7530 from RC1 without no issues however only issue i have is my FRITZ!Box 7530 LAN ports are not configured propley For example LAN 1 is LAN 4 and LAN4 is LAN1 but not sure if this was in other versions of OpenWrt.@rmilecki @jow i completed factory resetted the FB but issue still there

@YuriPet - What FRITZ!Box do you own for the near 1G service? and do you use PPPoE or WAN?

I use the FRITZ! Box 4040 and DHCP wired connection with provider.

[PATCH] ipq40xx: specify FritzBox 7530 LAN port label numbers


Fantastic! - Thanks again for reading and patching!
Later on will check if LANs 2-3 are in the correct order also what i should of checked.

There is also another issue for default Switch on the FB 750 If i do

swconfig dev switch0 show

        vid: 1
        ports: 0t 1t 2t 3t 4t

        vid: 2
        ports: 0t 5

Since is a DSL router and dos not have a WAN port on ports 5, Should this be corrected as just VLAN 1

        vid: 1
        ports: 0t 1t 2t 3t 4t


MT7621's Hardware Flow Offloading combined with the VLAN filtering feature works on 19.07 (very low CPU usage) but it does not on 21.02 (huge CPU usage).

I'm afraid it won't work for you with the 21.02 release, you'll need to wait for the next one, based on kernel 5.10 (or newer):

[12:06] <nbd> right. that's not supported in the 5.4 code
[12:06] <nbd> only in the 5.10 kernel

Did you mean 7530? If so, I don't know where does that port 5 come from.

If you look at 02_network, you'll see:

		ucidef_add_switch "switch0" \
			"0u@eth0" "1:lan" "2:lan" "3:lan" "4:lan"

(there isn't anything like 5:wan).

FB 7530 sorry @rmilecki

Hmmm... That's very strange why swconfig shows VLANs 1 and 2 at default via SSH however VLAN 1 shows in Network > Switch under Luci.just how 02_network looks like!

Now another issue i found is that deleting VLANs swconfig seems to think i have this setup.

root@FB750:~# swconfig dev switch0 show

        vid: 1
        ports: 0t 1t 2t 3t 4t
        vid: 2
        ports: 0t 5
VLAN 42:
        vid: 42
        ports: 0t 2 3 4
VLAN 92:
        vid: 92
        ports: 0t 1

however only setup i have is 42 and 92

VLAN 92 - WAN via port 4 but afther the patch i will be port 1)

On the Wiki, Someone mentioned that with this SoC, VLAN IDs 1 and 2 are treated specially by the hardware driver, Hints the 42 and 92.


config switch
	option name 'switch0'
	option reset '1'
	option enable_vlan '1'

config switch_vlan
	option device 'switch0'
	option vlan '42'
	option vid '42'
	option description 'LAN'
	option ports '0t 2 3 4'

config switch_vlan
	option device 'switch0'
	option vlan '92'
	option ports '0t 1'
	option vid '92'
	option description 'WAN'

Hmm- what setting? LAN -> DHCP -> General?

I just set 5m for my LAN, joined my iPhone, and status page shows it counting down:

0h 3m 44s

I'm running not rc2, but OpenWrt SNAPSHOT r16380-3a6b187e03 / LuCI Master git-21.088.74150-ba4e214 so master is OK.

Can anyone else confirm?

Ouch. :see_no_evil:
Will a point release jump to >= 5.10?

@systemcrash :

OpenWrt 21.02.0-rc2 r16122-c2139eef27

Tested on 3 different routers:

  • X86_64
  • Fritz!box 4040
  • WD MyNet N750

Each time at least twice on 19.07.7, then 21.02.0-rc2

Case 1: lease time 12h

Result 1:

Case 2: only change: lease time = 10h:

Result 2: It starts to loose leases on each client once the actual lease time is over.
I forced a ipconfig/renew6 on hosts 'station10' and 'GL503VD' to illustrate that, the leases disappeared from the list (and of course the hosts lost Stateful/reserved addresses):

station10 and GL503VD are not there anymore:

if I reset the value to 12h the hosts are able again to get the leases:

Sorry, I don't understand this sentence

If you mean whether or not during the 21.02 cycle we will ever update the kernel to >= 5.10 the answer is no. Such kernel updates are usually only done on master way before branching off a stable.

Before you save the 10h change, what does LuCI say above when you click on unsaved changes?

Only one row? Or does something else slip in?

Try also via command line (SSH):

uci set dhcp.lan.leasetime='5m'
uci commit dhcp

See if it has the same effect.

Are you sure those are DHCP assigned leases? And not SLAAC?

How is the IPv6 Settings Tab set, esp for