WiFi 5G is missing #137
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Most likely you are missing firmware files. If you were are using snapshot builds, this can happen because the firmware was previously included in |
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I think that the package is installed by default: Or you suggest that I install the "openwrt-22.03.3-mediatek-mt7622-linksys_e8450-squashfs-sysupgrade.bin" file located here? https://openwrt.org/toh/linksys/e8450 Sorry but I don't know where is the installer for |
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If you use OpenWrt 22.03 the firmware for MT7915 is part of Please share the complete system log, so I can see why the 5 GHz wifi is not detected.
No, using a non-UBI firmware file on the device after the bootloader has been switched to the UBI-aware version will brick your device. Don't do it. |
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I restarted the device (usin LuCi) and here are both logs: System LogKernel LogI changed the MAC for a fake one and deleted the DHCP assigments. |
This is a symptom of the updated SPI-NAND driver and was discussed in #27 If you are already on U-Boot 2021.10 or newer then we are dealing with a different problem and in this case please dump the EEPROM data from flash using |
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@dangowrt I had similar issue: over the last few days/weeks I've observed degraded internet performance (most likely WIFI-only) until it stopped working after i came back from holiday. I remember some error about Re-installing firmware and reloading backup fixed the issue with inactive radios. |
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Anyone coming to this issue with 5G not working after an update. I just had this issue as well. However, my error seemed to be different from this issue author. My kernel log: I was able to fix this by installing |
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I too have the very same problem outlined by the OP. I have a brand new E8450 that I unwrapped yesterday and tested. Then, after reading all the text on the UBI installer, I uploaded the installer and then flashed the current 23.05.0 firmware. I'll admit that I uploaded the wrong installer initially (using the newest 1.1.1 version), but then reread everything and attempted to install the 23.05.0 firmware again. I am now confident I have the 23.05.0 firmware installed correctly. HOWEVER, just like OP's screenshot above, I only have radio0 available, and the 5GHz radio1 is not being detected. My log looks like this: As others have suggested in past posts, I have also checked that the kmod-mt7915-firmware is installed. I've also tried force-reinstalling it to no avail. Where do I go from here? I am still newish to OpenWRT, and did not expect this device to be so troublesome. |
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Also, here is the hexdump info: |
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@wit-know your issue can be seen in your kernel log: Just searching for mt7915e on GitHub shows lots of people having issues with this driver. |
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@wit-know What you are seeing is the (expected) result of having used the v1.1.x installer and then trying to use an older OpenWrt release. That can't work. And it's not related to the original issue, but actually another issue.
After using the v1.1.x installer there is no going back, or at least it is not trivial. You cannot use 23.05.x then, unless you first completely restore the device to factory state and then run the pre-v1.1.x installer. If you want to do that, you will need the backup files from the |
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@wallrik Neither |
Thank you, Dan, for all your help. I was able to revert to revert back to the Linksys firmware 1.0.01.101415, and then proceeded to upload the 23.05.0 installer. However, while flashing the the 23.05.0 sysupgrade, the unit bricked! I don't know how that happened, but now I have a USB UART adapter on the way and then will proceed from there. As a side note, if I can recall correctly, after I accidentally installed the v1.1.1 installer (my fault), I was still never able to install the v1.1.1 sysupgrade successfully. That is how I ended up flashing the 23.05.0 sysupgrade instead. Regardless, I was a bit green in rushing about while installing those releases, and probably did not fully read your instructions on Github. Your detailed instructions are actually written quite clearly. |
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@wit-know Strange, but hard to tell what happened before connecting the serial. Feel free to reach out should you need more assistance. |
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Can you tell me the details of the process of restoring the factory firmware from the latest installer？ @dangowrt |
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I also have the same issue where I ran the 1.1.2, then install the latest UBI SNAPSHOT from the OpenWRT website. I'm using Linksys e8450. After comparing configuration with Belkin 3200. I was able to find out what causing the radios to show generic. My kernel log does not have any error with firmware. Firmware mt7622 and 7915e were loaded without issue. When I run command "iw phy" on the snapshot, and the wifi was listed under "phy0" and "phy1", while under previous stable release, iw command returned "wl0" and "wl1" So I edited "/etc/config/wireless" After refresh wifi page on luci, I am able to see the correct name However, it seems like there is an automatic generation of wireless config that it added a wl0 and wl1 entries back under radio2 and radio 3, but it did work. If somebody can find out how the autogenerate work, this issue can be solve. It is either the "iw" command issue or the template incompatibility with the iw. 
Additionally, it seems that the automatic generation has something to do with /etc/board.json After rebooting the router, it seems that wifi page has no new generated generic radio anymore. Conclusion, it definitely has something to do with "phy" name change that caused the pre configuration to fail. I do not know what command used to generate config but I suspected "wifi config" command according to this link or iw command. |
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What is the solution for the generic 5ghz wifi not loading wth the 23.05.05 and installer 1.1.1? My router also will not keep its dhcp lan and requests a new ip every reboot with the same mac address. EDIT: I was able to get it working by updating the the lastest snapshot. |
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Until and unless this problem is solved, what is the best stable version available today? |
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I don't remember when 5G disappeared or what update triggered it, probably about 2 year ago. But now a new device is on the network and want this frequency.
I saw the advices at #114 and I did this steps (the is last called "mediatek-mt7622-linksys_e8450-ubi-squashfs-sysupgrade.itb" located at https://github.com/dangowrt/owrt-ubi-installer/releases/ ):
Wait to restart and login on luci, gone to WiFi section and obtain the same result:
Can I do something to fix it or the 5G is broken forever?
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