TL-WA1201 causing DNS errors on Hitron Chita routers

TL-WA1201 causing DNS errors on Hitron Chita routers
TL-WA1201 causing DNS errors on Hitron Chita routers
2022-06-24 11:10:03
Model: TL-WA1201
Hardware Version: V3
Firmware Version:

I have about 20 of these devices across multiple sites. We recently replaced our Hitron CGNV4 routers for Hitron Chita routers. Before the change, all access points worked fine with no problems. All are set up to mirror the separate 2.4 and 5GHz SSIDs as the router. No VLANs. 
 

Since changing the routers, we've been getting countless reports of intermittent connections and total loss of service. Users have been able to access certain apps and websites but time out for the majority. This also occurs for anyone connected directly to the router, wired or wirelessly, so not just on the APs network. Changing the DNS settings on the router from the ISPs automatic ones to use Google's servers instantly solves that problem. 
 

The thing I don't understand is why this is only happening at sites I have this access point installed and how the APs would even be able to mess with the DNS settings on the router? 
 

SmartIP is turned on and DHCP is disabled on the APs. There's no DHCP reservation for the APs on the router. 

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Re:TL-WA1201 causing DNS errors on Hitron Chita routers
2022-06-24 16:18:12 - last edited 2022-06-24 16:19:35

  @Velo 

 

Hey

 

Reading your post this sounds like the relationship between the Issue and APs is just coinceidental.   The fact you mention this happens to anyone, regardless of the AP or not is the giveaway there.  

 

This also occurs for anyone connected directly to the router, wired or wirelessly, so not just on the APs network.

 

If someone is cabled straight into the router, they will be totally unaffected by anything the AP would do.  Unlike Switches, routers wont mix data between different ports, therefore an AP on port 1 will only go to a PC on port 4 if you directly ask it too do so.  In short any AP wouldn't have a need to go anywhere but its one specific router port. 

 

It seems highly unlikely to be the AP causing this, they also cant affect DNS on a router in any way as only routers handle DNS, APs are dumb devices.    It sounds to me like your ISPs DNS server is un-reliable.  Try a 3rd party DNS for while

 

If this is a Virgin Media router, then for sure its not the APs.. Virgin media DNS has long been questionable

 

 

 

 

 

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Re:TL-WA1201 causing DNS errors on Hitron Chita routers
2022-06-24 18:29:03

  @Philbert Yeah, a lot with Virgin Media is questionable so that wouldn't surprise me. 
 

I only question it because I'm running over 100 of these Hitrons and the only ones playing up are the ones with these APs. Especially as the ones running with no APs on the network using Virgin's DNS servers are fine. 
 

I completely agree the issue isn't the APs, it's the router. But the fact that every single AP installation is having problems means there is something triggering it to do with the APs. I know the answer is to not use the Hitron as a router, just given the amount of installations I have, I was hoping there was a simple setting I've overlooked before I end up buying new routers!
 

I'm trying to run as dumb a device as possible to extend wireless coverage so as not to upset the Hitron's fragile ego as they have a reputation for crashing when running any type of wireless extender on the network. God forbid you wanted to try out a mesh network. Thought I'd found a way around that issue with wired these APs. Time to spend more money to deal with Virgin's faulty hardware. 

Thanks for your help. 

 

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Re:TL-WA1201 causing DNS errors on Hitron Chita routers
2022-07-21 05:42:09

  @Velo 

my experience with the Chita router is exactly as you describe.

VM switched the hitron out for a Chita and then randomly during the day, zero access for most devices. The only solution was a router reboot. But this lasted at best 6hrs, at worst 30mins.

issues since 26june thru 19 July.

 

No issues found after several vm call outs, cables & splitters & attenuator changes and even a network engineer checked the core network and found no faults.

 

Then I checked the Chita and found that despite the majority of the local network unable to access the internet, the Chita could ping and tracert just fine.

So I manually switched one of the local devices dns to use 1.1.1.1, and immediately internet access was restored.

 

that is clearly not a solution for your network (nor my tiny one tbh), so I changed the Chita to manually use 1.1.1.1 (and 8.8.8.8 as a back up), and every device was immediately back online.

logically this makes no sense as the vm dns server is working fine (as some devices including the Chita can use it and access the internet), but something is clearly wrong with the Chita and how it manages auto dns around the local network.

it's also illogical why setting a manual dns doesn't also fail. But it's been three days and no drop outs.
 

I hope this helps you. I fed this back to the vm tech team, they said they'd log the workaround and suggested I keep the manual settings as it resolved the issue, even though they don't know why this is happening either.

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Re:TL-WA1201 causing DNS errors on Hitron Chita routers
2022-07-21 08:57:31

  @antbs As much as I'm not overjoyed to see you're also having the same problem, there is a slight solace knowing that it's not just me. 

 

Only thing to be aware of that I've found is if the CHITA is power cycled, they sometimes don't keep the manual DNS settings and reverts back to the automatic settings. 

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