Replies: 21 comments 26 replies
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Hi @farrisce This sounds like fun. Let's see what we can do. Post the output of: $ iw dev |
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I don't have hostapd running on 7612u wlan1 as it keeps causing the network to fail. |
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Okay. The first thing I am going to recommend is the following from the guide: You have a setup that can and will switch which adapter is band 1 and which one is band 2. We can't have that so we need to lock the interface names. Once that is complete you need to make appropriate changes in both of your hostapd.conf files. Now post the contents of both hostapd.conf files and the options line from the active 88x2bu.conf file ( ./edit-options.sh ). |
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Changing the interface names definitely made a difference,however, I'm still experiencing a few issues. The 2.4 ghz network disappears shortly after it is started. The 5 ghz network is up to speed. I'm averaging between 180-205 which is what I would expect. Although, my iPhone seems to randomly disconnect and sometimes it takes 4-5 tries to reconnect. The 88x2bu is running the 5 ghz and the Alfa the 2.4 ghz. Here are the options: options 88x2bu rtw_drv_log_level=0 rtw_led_ctrl=1 rtw_vht_enable=1 rtw_power_mgnt=1 rtw_beamform_cap=10 rtw_dfs_region_domain=0 rtw_sel_p2p_iface=1 rtw_switch_usb_switch=2 |
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I used the default hostapd.conf that are posted in the repo. The only change I made is removing the stby parameter. I'm getting good speed, but it seem my iPad and iPhone are conflicting. Only one device can be connected at a time. I'm having no issues with my HP laptop. The Apple devices don't like to connect if the other device is present. Any thoughts? |
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I'm going to recommend that you switch this setup and have the ALFA do 5 GHz and the 8812bu do 2.4 GHz. The reason is that during testing of the 88x2bu driver before we released it, we found a problem in AP mode that was specific to RasPi4B's. The problem only showed up in 5 GHz. I would like to know how many and what type of usb devices are plugged into your usb ports. The RasPi usb subsystem can only supply a total of 1200 mA or power. The Alfa will use about 380 mA during heavy use and the 8812bu will use around 500 mA during heavy use. If you have other usb devices plugged in, you could be pushing the amount of power available. |
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The network is much more stable with the Alfa in 5ghz. All devices seem to connect and stay connected as expected. The caveat is I'm only getting about 160 mbs, but I'll trade that for stability if I have to. If you have any suggestions on this I'd appreciate it. As far as the usb devices, I have the Alfa, a Rocketfish hub with the 8812bu and a tp-link usb to Ethernet rtl8152. I have a power supply with selectable voltage if the usb will use the extra power. Thanks again for your help |
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Good.
Go to: https://github.com/morrownr/7612u Go down to where it says |
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Will the disable sg work for the Alfa as well? I'm getting the 160 mbs via the 5ghz network on the Alfa. Is there a way to reinstall the 7612u driver? |
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Okay, I have created confusion. Sorry. There is no need to do anything with the Alfa driver as far as installation is concerned. It is an in-kernel driver and the version you have should work fine. My installation instructions are not for installing a driver, it is simply to install a script that makes adding the |
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Just to clarify: The |
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Thank you, my apologies for the confusion. I installed the script and for insurance ran the echo 1> followed by grep [[:alnum:]] /sys/module/mt76_usb/parameters/* |
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He he. Confusion can happen when setting up a dual band AP. You are getting good speed, we think, but this is something that can depend on many things. How many 5 Ghz AP's are on the same channel in close proximity? WiFi is designed to share so if there are many AP's in the same channel, things could slow down at times. There is also the issue of distance and obstructions. It can take a while to get these dual band setups fully optimized but it is good for learning. If you are interested in having me take a look at the hostapd.conf files, please post them. Also, have you tested 2.4 GHz yet? |
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The 2.4 is running well, getting about 75-80 mbs. I'm not really worried too much with speed as it supports legacy home automation devices. Previously I wasn't able to switch back and forth and networks would disappear. That seems to be solved! I'm very grateful! I am sitting about 10 feet from the pi. I'm in an apartment so there are networks everywhere. I'm sure channel 36 is quite congested. I've tried other channels before and didn't have much luck. At the end of the day I'll take the stability. I don't have a gui running on the pi and I can't get the hostapd.conf file to copy/paste here from a terminal. I'm happy for you to take a look to further my knowledge |
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Glad it is working well. The setup you have can be turned into a full up wifi router should you need that capability. The cool things is that the RasPi4B has enough horsepower to handle a 1Gb network so it can outrun most of the consumer wifi routers on the market. You know where to get me if anything comes up. Regards |
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On a separate note, you should upgrade your rpi kernel to 5.15, as the 5.10 version does not handle usb wifi adapters well on rpi. To update, run |
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I’m getting this error
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That's weird. Nothing besides |
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I had a similar report this morning over in the 8821au repo. Can I get you to follow along? The above reporter is using 5.10 so it may not have to do with you installing 5.15. So far I do not know what is causing the problem but I am trying to duplicate it here. Regards |
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Thanks for your help! I have a backup pi, so no hurry. The production 5g network has disappeared about 6-8 times in the last two days. I’m hoping 5.15 will solve this problem. Thanks to Nick, it’s still much better than it has been 😀 |
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On my production pi the 5G network goes away a couple of times a day and returns when I restart hostapd via systemctl. At this point, I'm still running on 5.10. I tried the solution in the au discussion on my test pi that was running 5.15 and it rolled it back to 5.10. Any suggestions? |
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Hi @farrisce It took me a while to reread the thread and get back up to speed. I don't think the 5.10 kernel has anything to do with this. My Pi4B that is running as an AP is rock solid with 5.10. It has the 7612u based adapter doing 5 GHz and another adapter doing 2.4. In the last 6 months, the only time I was able to find a problem was when getting the latest 88x2bu driver ready for public release. It would cause exactly what you are talking about... the network would simply drop offline and either restarting hostapd or a reboot and it would come back. We were able to mediate the problem by limiting adapters based on the 8812bu chipset to certain things. What I really need is to see both of your hostapd.conf files and the 88x2bu.conf options line (./edit-options.sh). I think you said you did not have a gui running. That is fine. nano can do mark and copy... just look at the little menu at the bottom of the screen when running nano. If you are accessing the Pi via VNC, copied stuff is available all you need to do is paste it here. It would be best if you use ``` above and below what you paste so as to keep it organized. Regards |
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VNC would not connect so I had to !do photos. If you can't read anything let me know
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Hmmm... sudo nano /etc/modprobe.d/88x2bu.conf Changes the options line to: options 88x2bu rtw_switch_usb_mode=0 and plug the 8812bu based adapter into a USB2 port, not USB3. |
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I made the change, rebooted and the 5G network on the 7612u dropped about 10 minutes later |
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Sigh... What could be the difference? My little Pi4B with a 7612u based adapter pulling duty as a 5 GHz AP (and another adapter working as a 2.4 AP) has been going for a week. I never see a drop. The only reason for only a week is that I took it down to change out some hardware. I'm beginning to wonder if it is something besides our configuration. Do you have an extra sd card that you could burn a current copy of RasPiOS so we can start fresh? |
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I do have an extra pi and add so that's no problem. It stayed up all night and hasn't disappeared yet today. I'm wondering if it might be solved? If it happens again I'll start over and see what happens. Thanks! |
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It did drop so I need to try the new network. Any suggestions as I get started? |
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Did a clean install of full raspbian and both networks are running smoothly and I'm getting much better throughout than before 230 mbs as compared to 160-180. Here's hoping the networks stay up! |
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Still up? |
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So far, so good. Quick question: Does the bridge setting in hostapd create a bridge? Should I use bridge=br0 in both conf files? |
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It just dropped. I can't believe it! I haven't made any changes. I appreciate your help! |
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Seems to be stable now. I didn't have it bridged before. I would not have guessed that two subnets would cause the network to drop. Thanks again! |
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Update: Network dropped again, and the 88x2bu disappeared. I had to load the driver again to bring it back up. I still have both USB adapters plugged in, but an only running the 5g hostapd on the Alfa. Any suggestions? |
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No. See below:
Yes
Not really. |
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I set up a 2nd pi for the 2.4 network and is was working perfectly. The sd card failed so I copied the card from my primary pi. I cannot get eth0 on the secondary pi to bridge to br0 and get a dynamic IP address from the primary pi. Any ideas? |
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Darned sd cards. Sure, I have a lot of ideas but it would take several pages to write them all. Let me suggest that you use my guide to work your way through the settings: https://github.com/morrownr/7612u/blob/main/AP_Mode-Bridged_Wireless_Access_Point.md |
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The bridge is created and includes eth0 and wlan. Hostapd starts but br0 gets no IP address from 192.168.2.1. I tried dhclient but no luck |
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I switched back to the original pi and connected both cards. True to form, it stopped after a few hours. I started the 5G network manually with debug and here are the results. I've read that the tx log fills up and causes hostapd to stop. However, I don't know how to fix it. Your help is greatly appreciated! |
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Thanks so much for your help. The setup is working perfectly. I had to make two changes:1. Switch to two Alfa WiFi adapters 2. Increase the power to 6.6vCan you recommend a powered usb hub so that I can reduce the power back to 5v?On boot I have to start a 5v and slowly increase the power to 6.6v or it won’t boot. One other question, I’m adding an usb Ethernet to br0 and it doesn’t survive a reboot. I’m loading via systemctl but I don’t thing I have it loading in the right order. Thanks!On Feb 16, 2022, at 8:45 PM, Nick ***@***.***> wrote:
Darned sd cards.
Sure, I have a lot of ideas but it would take several pages to write them all. Let me suggest that you use my guide to work your way through the settings:
https://github.com/morrownr/7612u/blob/main/AP_Mode-Bridged_Wireless_Access_Point.md
—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you were mentioned.Message ID: ***@***.***>
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Hi @farrisce
It is probably best if your search and maybe ask this question over in the RasPberry Pi Forums. The one I have is the: Transcend USB 3.0 4-Port Hub TS-HUB3K ...but researching the issue in the Pi forums is a really good idea.
If I am understand you correctly, you may want to turn on Cheers |
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Hi there,My setup has been working great, I appreciate all of your help. I’m setting up another rig to route Dante traffic (audio over IP)They specify the following QOS:PriorityUsageDSCP LabelHexDecimalBinaryHighTime critical PTP eventsCS70x3856111000MediumAudio, PTPEF0x2E46101110Low(reserved)CS10x088001000NoneOther trafficBestEffort0x000Is there any way to do this in raspbian? I have a tp link usb Ethernet adapter for lan traffic which is bridged to the WiFi adapters. I can forego WiFi if needed if I can do the above on the usb Ethernet. Thanks so much!!On Jul 30, 2022, at 5:26 PM, Nick ***@***.***> wrote:
Hi @farrisce
Can you recommend a powered usb hub so that I can reduce the power back to 5v?
It is probably best if your search and maybe ask this question over in the RasPberry Pi Forums. The one I have is the:
Transcend USB 3.0 4-Port Hub TS-HUB3K
...but researching the issue in the Pi forums is a really good idea.
I’m adding an usb Ethernet to br0 and it doesn’t survive a reboot. I’m loading via systemctl but I don’t thing I have it loading in the right order.
If I am understand you correctly, you may want to turn on predictable network interface names:
Enable predictable network interface names (from my Access Point guide)
Note: While this step is optional, problems can arise without it on dual band setups. Some Linux distros have this capability enabled by default but not the Raspberry Pi OS.
sudo raspi-config
Select: Advanced options > A4 Network Interface Names > Yes
Cheers
—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you were mentioned.Message ID: ***@***.***>
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I have this hub:
https://www.amazon.ca/gp/aw/d/B0885XXTWD
It may have changed since I bought it or maybe the one I bought was a fluke to work with my stuff.
The Transcend is 2a/port but I think the one I have is 3a/port.
I think whatever hub you try is very hit and miss.
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I got this one |
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Thanks so much for your work and contributions to the community regarding using Pi as access points. I'm using 5.10.63-v7l+ and two USB adapters, one Alfa 7612u usb Id 0e8d:7612 and a TeckKey 88x2bu usb id 0bda:b812. I'm trying to use hostapd to create a 5 ghz network and a 2.4 ghz network. I've experienced a range of issues, most commonly networks run for a while and disappear, static ips disappear etc. I have about 220 mbs coming in but struggle to get 100 mbs via WiFi. I'm using two copies of the hostapd.conf that is on the bridged network how-to. I've also received the error that the 7612 does not support GF. I've also upgraded to 5.10.88 and was unable to install the 88x2bu driver as dkms could not find the kernel source. If you would happen to have a working disk image of raspian or openwrt that maximizes the throughput of one of the usb dongles to in order to get close to 220 mb, and the access points are stable I would really appreciate it.
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