Multiple issues with wireless connectivity

[DarkSide]

Hi，

What kinds of hardware module board are you using ？ such as AITHINK ESP-01

Could you offer the captured packets of 80211 wireless (NOT wire) ?

Thanks for the help.

I'm using Aithinker ESP-01.
In previously attached archive "pcap.zip" you will find file "gateway_ap.pcap" - this is a packet capture directly from access point. Is that what you need? Otherwise it's not clear to me what exactly you want me to capture? Or you want me to capture packets with airodump-ng?

[DarkSide]

bump.
The issue is still present.

[ESP_Faye]

Hi,

So sorry for the inconvenience.

We want to know the problem of failed connection（auth/assoc resp failed）， rather than something about ARP reference.
The failed connection may cause arp problem, but I'm not sure yet.
Sometimes, failure of some frames exchange may change the program flow, and may consequently cause arp problem.
Let's make sure that the failed connection is the root cause of all the problem. If it is not, than look for other reasons.
So,
1. Please offer the 802.11 caps(I need wireless pkts, not ethernet pkts), we need to determine if the auth/assoc req package send out successfully or not.
2. What's the sdk version of your ES8266 module ?

[hdrut]

Hi,

I am having ARP problems too. ESP seems to stop responding to ARP requests sometimes. No trouble connecting to WIFI, just problems when sending ARP broadcast requests.


Any solutions already? Thanks !!

[ESP_Faye]

Hi hdrut,

Sorry for the inconvenience.

Your problem is a known issue, we are working on it .

Thanks for your kindly reporting, we will let you know if there is any updates.

[joostn]

Hi Faye,

Some time ago I ran into similar problems with multicast, the ESP would sometimes not respond to IGMP Membership Queries. I've worked around that by just repeating IGMP Join messages every couple of seconds (as well as repeating ARP broadcast every few seconds).

That was on sdk 0.9.5, I haven't tested the later releases, but if the ARP problem still exist it may be worth testing multicast as well. Sorry for not being more specific but I guess it's related because the IGMP query is a broadcast packet as well.

[hdrut]

I am still experiencing this issue with ARP and have now found out the following:

- Station A is asking for MAC address of destination IP but no answer is coming from ESP8266 module.
- Station B joins, then ESP8266 answers ARP requests satisfactory.
- Station A now gets its ARP request as well.

Hope this helps solve the issue soon.

Greetings,


Horacio

[LTeixeira]

I am facing the same problem while in station mode.
After a couple of tries (ARP requests MAC to given IP), some number of requests, from 0 to 20, finally ESP answers with its MAC address.

Some seconds after ESP connects to the local network it answers to all ARP requests correctly.
Some minutes after it will start failing.

I am compiling my code in SDK 1.5.0.
Is there any possibility that Espressif will open the sources of ARP related code or release a patch to fix that?

Thanks and regards.