Gemtek W1700K Community Builds

Community Builds, Projects & Packages
82

Update on my earlier post about 500Mbps cap on 6GHz:

After deeper investigation I can confirm the root cause: WED offload is completely absent on this platform.

Evidence:

  • dmesg | grep -iE "wed|wdma" returns nothing — zero WED initialization
  • No debug interfaces at /sys/kernel/debug/mt7996/ or /sys/kernel/debug/ieee80211/phy2/
  • WiFi IRQs (55, 56) accumulating 40M+ interrupts — all traffic taking software path
  • Station dump shows perfect link: HE-MCS 11, 160MHz, 2401 Mbps RX rate, expected throughput 1639 Mbps
  • iperf3 Mac ↔ router (local, no WAN involved): capped at 500-600 Mbps

I also found the post mentioning the MT7996E WED hardware ID mismatch (NPU expects ID 7992, chip reports 7990/7991). This explains everything.

Question for devs: Is there any active work on the WED patch for AN7581+MT7996AV? The previous UBI1 build hit 1.1Gbps consistently — was WED working there, or was something else different? Since the flash layout changed we can't go back to test.

Happy to run any debug commands or tests if it helps move this forward.

1 Like
83

the performance limitation you saw on iperf3@router is the CPU (A53 at 1.3Ghz) being too weak to send/recv iperf3 traffic. If you run “speed test” at 6Ghz, you can get 1.6-1.9Gbps to external servers.

84

Before the UBI2 upgrade, fast.com consistently showed ~1.1 Gbps (my ISP is 1 Gbps). Now fast.com shows lower numbers (around 500-550 only).

85

I’m just using the stock snapshot, not any of the community builds here.

86

I'm on ubi2-r34337, and I get 920/930Mbps from fast.com, on ethernet and Wifi.
My ISP is 1Gbps.
I see very little CPU usage during tests.

87

When i do speed test the cpu use is low like less then 20 but the CDM 4 wifi 6 become poor.

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88

I'm not good enough to interpret that dashboard :slight_smile:
Do you use w1700K as AP or router ? I use it as a router.

I have all zeros at CDM4, i can't tell why

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89

router.

It should show the number of clients connected to Wi-Fi.

Also, I just tried the new UBI2-OC-2026.05.05-R34338-9b51dcfccc, but the Wi-Fi is not getting on after a reboot. And the attendance system upgrade removed all the installed APKs.

Now I went back to UBI2 R34299-deed3f291d, and the Wi-Fi is on.

90

Is this patch related to this bug?

91

I recently had the WiFi not coming up once, I just rebooted and WiFi was up.
Losing all installed packages after a sysupgrade is intended.

Curious why CDM4 show "no clients" for me....

92

But I used attendant system upgrades, which I believe keep all the package.

93

If you use Atttend Sysupgrade with the "Check for github firmware" option, it just download the binary from github and perform a flash, so it doesn't keep installed packages.

Keeping installed packages is only possible with official firmwares as it request a custom build with your packages included to the official build server.

94

I would like to share may image - https://github.com/danpawlik/openwrt-builder/releases/tag/airoha-devel-6.18-nft_flow-2026-05-07 done using Github actions:

The image does not contain the patch for new partition layout (https://github.com/openwrt/openwrt/pull/23061)

1 Like
95

Poor means that something is being offloaded, have no clue why it is setup like that, but if it shows good under load you can easily see with htop that nothing is being offloaded.

That and the low bandwidth numbers.

edit: by nothing offloaded i mean WiFi isn’t offloaded, Ethernet ports could still be offloaded when WiFi isn’t

96

OK, I see why CDM4 status didn't show any clients for me.
I renamed my wifi interfaces to "wifi-2.4, wifi-5, wifi-6", but the script which collect the stats loop over phy0.0-*, phy0.1-*....
By default, OpenWrt named interfaces likes this : phy0.0-ap1...
So now I renamed my interfaces "phy0.0-2.4, phy0.1-5..." and it works

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3 Likes
97

Is it alright if I do sysupgrade UBI2 firmware on UBI1 pre-installed? Or should I install chainloader from the beginning? I am using old @OpenWRT-fanboy ‘s UBI1 build now, but I want to upgrade to UBI2 builds.

98

You should get the files there :

And redo the full installation to convert from ubi1 to ubi2

If you have exported your config and restore after flash, you have to play those commands after :

uci set system.@system[0].compat_version="2.0" 
uci commit system
1 Like
100

Thank you very much! I successfully installed UBI2 bootloader and OpenWrt!

2 Likes
101

Is anyone using one of the community builds with a Samsung Galaxy S26 Ultra?

I'm still on a pre UBI fan boy build and the S26U chokes after a few minutes, send and receive speeds plummet and it often swaps to mobile data. The S25U had no problems at all. I don't have the same problem with the S26U on the WiFi at work. I'll test with my old Belkin RT3200 later today to see if that works OK.

102

Try removing the default IPv6 ULA-Prefix in Global Network Options. I ran into a similar issue on a S24+ and clearing that setting resolved the connection problem for me.