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Ubiquiti Employee
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Re: Problems with Wireless Uplink users

@andrewhotlab if things started going wrong at 4.0.10, that would make sense.  4.0.10 introduced a newer kernel to the firmware for Gen1 (4.0.x marks the new kernel for Gen3).  

 

But there is a caveate here... 4.0.10 has two different builds, one with the new kernel and one with the old.  If you're on the new kernel version (4.0.17 or later), then trying to downgrade to the release version of 4.0.10 will fail because it is the old kernel version.

 

Once a Gen1 AP has been upgraded to 4.0.17 or newer, getting back to the old kernel version is very difficult (and I haven't actually done it myself).  I can provide you with a LEDE version of 4.0.10, so that you can downgrade to that version.  But the only way we will be able to see if the issue existed in the OWRT version is if you still have an AP on the older firmware that has not been upgraded yet.

 

Let me know if you have anything on an older version that you can use to isolate the version.

If you'd like to try our latest features, consider signing up for beta: https://help.ubnt.com/hc/en-us/articles/204908664-How-To-Sign-Up-for-Beta-Access

If you're trying to debug a network issue, take a look at this help article: https://help.ubnt.com/hc/en-us/articles/221029967-UniFi-Debugging-Intermittent-Connectivity-Issues-on-your-UAP
Ubiquiti Employee
Posts: 1,436
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Re: Problems with Wireless Uplink users

@rbosworth Just want to clarify... this behavior is after you sorted out (worked around?) the compatibility issue with the switch, right?

 

Also, was the base station also on 4.0.30 when you had the issue, then fixed with 4.0.10?  If you can reproduce that 4.0.30 has the issue, I have a debug build that I can also give you (that is based on the newest FW) that might resolve the issue.  That is, it might fix the possible regression you've experienced.  We've identified a couple of things that can trigger the Mesh AP's loop detection, which is most likely the reason you're seeing the Mesh AP come and go.

If you'd like to try our latest features, consider signing up for beta: https://help.ubnt.com/hc/en-us/articles/204908664-How-To-Sign-Up-for-Beta-Access

If you're trying to debug a network issue, take a look at this help article: https://help.ubnt.com/hc/en-us/articles/221029967-UniFi-Debugging-Intermittent-Connectivity-Issues-on-your-UAP
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Re: Problems with Wireless Uplink users

@UBNT-BenBuckley Correct.  It was an accidental thing for me to correct the link issue on the switch.  I updated my controller version to 5.10.x and it basically forced me to update the AP -- I tried to downgrade the controller but at some point it automatically upgraded the AP and though I could easily downgrade it via SSH, it repeatedly insisted on upgrading it as soon as it was adopted.  No idea why that happened as I toggled and untoggled the "automatic upgrade" setting over and over.  In the end I decided it was easier to add another small switch and try to get all of my devices on more current firmware/software.

 

And yes, base station being on version 4.0.30 seemed to be the problem.  My wireless AP was always on a 4.0.30 build and never had any issues until I upgraded the base station.  Feel free to DM a link to the beta firmware and I'm happy to test.  This is a home environment so not a big deal if my wireless AP is unreliable for a bit.

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Re: Problems with Wireless Uplink users

@UBNT-BenBuckley   I tried to downgrade using the TFTP method (both to 4.0.10 and 3.9.54, but things went wrong in both cases... here is the console transcript:

 

Setting default IP 192.168.1.20
Starting TFTP server...
Using eth0 (192.168.1.20), address: 0x81000000
Waiting for connection: -
Receiving file from 192.168.1.25:34109
Received 7459934 bytes
TFTP Transfer Complete.
Bytes transferred = 7459934 (71d45e hex)
Firmware Version: BZ.ar7240.v3.9.54.9373.180913.2356
Will not overwrite u-boot partition! Skipped.
Copying partition 'kernel' to flash memory:

First 0x5 last 0x7a sector size 0x10000
...................................................................................................................... done
write addr: 9f050000
Copying partition 'rootfs' to flash memory:
Could find the partition name = rootfs 
Error occured while flashing partition 'rootfs'!(-1)
ar7240> 

 

Hoping to solve the problem, I issued the command 'erase all' to clear the flash storage, but now I have no output on serial cable at boot... may I have broken de device?! Man Sad  Can you suggest me how to rescue it?

 

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Re: Problems with Wireless Uplink users

@rbosworth I reached out offline.

 

@andrewhotlab good news (depending on the point of view, haha), I am seeing the issue on 4.0.10 LEDE now.  I'm not sure why I couldn't get it to happen on 4.0.17, but that's neither here nor there.  I'll keep working isolating the issue (I happen to have an AP on OWRT still, so I can try to confirm if the swap to LEDE is the culprit). 

If you'd like to try our latest features, consider signing up for beta: https://help.ubnt.com/hc/en-us/articles/204908664-How-To-Sign-Up-for-Beta-Access

If you're trying to debug a network issue, take a look at this help article: https://help.ubnt.com/hc/en-us/articles/221029967-UniFi-Debugging-Intermittent-Connectivity-Issues-on-your-UAP
Ubiquiti Employee
Posts: 1,436
Registered: ‎12-16-2015
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Re: Problems with Wireless Uplink users

@andrewhotlab yikes, erasing the flash storage was probably not the best idea, haha.  But I think we can recover, I'll reach out to you direclty.

If you'd like to try our latest features, consider signing up for beta: https://help.ubnt.com/hc/en-us/articles/204908664-How-To-Sign-Up-for-Beta-Access

If you're trying to debug a network issue, take a look at this help article: https://help.ubnt.com/hc/en-us/articles/221029967-UniFi-Debugging-Intermittent-Connectivity-Issues-on-your-UAP
Ubiquiti Employee
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Re: Problems with Wireless Uplink users

@seven2018 @andrewhotlab @rbosworth and everyone else having the issue, can you confirm the types of clients that see the issue?  Specifically, OS verions.

 

iOS? macOS? Android?  Windows?  Linux?

If you'd like to try our latest features, consider signing up for beta: https://help.ubnt.com/hc/en-us/articles/204908664-How-To-Sign-Up-for-Beta-Access

If you're trying to debug a network issue, take a look at this help article: https://help.ubnt.com/hc/en-us/articles/221029967-UniFi-Debugging-Intermittent-Connectivity-Issues-on-your-UAP
New Member
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Registered: ‎07-21-2015

Re: Problems with Wireless Uplink users

I’ve had issues with Windows 10 and iOS 12.x. As soon as I downgraded, no more issues. 

Emerging Member
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Re: Problems with Wireless Uplink users

I can confirm the same issue with the following wireless clients: iOS (11 and 12), macOS (10.11, 10.12), Windows (7, 10) and Android (I do not know the versions).

Emerging Member
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Re: Problems with Wireless Uplink users


@UBNT-BenBuckley wrote:

Let me know if you have anything on an older version that you can use to isolate the version.


I just managed to get an old UAP device running 3.9.19.8123... this can be used to help us isolate the issue?

Emerging Member
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Re: Problems with Wireless Uplink users

Ben,

 

I have noticed the problem happens with Android and OS devices. I haven't test other devices systems.

 

Regards,

 

Sandrigo.


@UBNT-BenBuckley wrote:

@seven2018 @andrewhotlab @rbosworth and everyone else having the issue, can you confirm the types of clients that see the issue?  Specifically, OS verions.

 

iOS? macOS? Android?  Windows?  Linux?


 

New Member
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Re: Problems with Wireless Uplink users

[ Edited ]

I had the same problem with AC-Mesh devices, that were connecting with wireless uplink to another AC-Mesh devices, and were disconnecting very often, even with good signal. But after upgrading to the latest beta firmware 4.0.40.10424, the problem seems to have gone away. No loop errors in the devices' log file any more and no erros alerts in the controller. I had this problem with almost all new firmware after 3.9.42. Have the rest of you tested this firmware? Did you also solve your problem?

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