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G_A_F's profile

Friday, July 12th, 2024 11:09 PM

Trouble connecting to 1 of 2 WiFi networks

Rough depiction of my network connections:

ISP <--> ISP Router <--> Internal (Mesh) Router <--> All WiFi Devices

Prior to the recent faulty firmware, my (gen 3) base station was always connected to my internal mesh network. Got the broken firmware, lots of flailing, eventually got the fixed firmware installed.

Since then the base station will connect to the ISP router, but not my internal mesh router. I've been through all the recommended voodoo tricks (e.g. factory reset the mesh routers, etc). SSID & passwd are both < 31 chars w/o any oddball non-ASCII chars. Because it can connect to the ISP router, the system still works, however I'd rather have that router's WiFi disabled entirely. No reason to open another vulnerable device.

I installed Linux on an external SSD connected to my laptop and ran Wireshark with an adapter that can capture at 802.11ac speeds. I have packet captures from both a successful connection to the ISP router, and the failed connection to my internal mesh router. The successful connection shows the expected sequence of Probe Req/Resp, Auth Req/Resp, Assoc Req/Resp, and the key exchange. The failed connection shows only perpetual Probe Req/Resp pairs - never gets beyond that point. I'd be happy to provide those capture files to anyone at SimpliSafe who would like to look into this.

Clearly the base station doesn't like the Probe Response from the mesh router, but I have no idea why.

1.3K Messages

4 months ago

I know this can be frustrating and I don't want to insult your intelligence, sounds like you know what you're doing.

Since you reset the mesh router;

Check mesh router;

Check all mesh settings via router browser login on a PC so you can see it. I'm old, big letters are better.πŸ˜‰

Wpa2 security only.

Check access control is off allowing connections.

Etc.

If you saved a previous mesh config file, restore it to the mesh.

Turn off ISP WiFi, forget the base WiFi at the keypad, and try again to connect to mesh at keypad from scratch, even though passwords are a PITA at the keypad, instead of using the app.

You could slso try a base reset, and try again. Who knows?

I've had times where it took multiple back to back tries to connect the base to my Orbi mesh, so either I fat fingered the keypad, or something else was up, but doubtful since its not a long nor difficult password.

Mine disconnects and reconnects from WiFi "almost" daily, multiple times, at least weekly lately.

No known reason yet. Same devices I've had in the house for many, many months.

Wifi is weird with this hardware, among many other issues. Old technology.

If you did all this, just ignore my post.

3 Messages

Haven't tried all of those things, but my practice has always been to follow the evidence to a root cause. Since the base can connect to -something- I'm not desperate enough to try more flailing. More to the point, though, the mesh (Google) router responds to the probe request with a normal-looking response. The base does nothing but send another request, though, so there's something about the response it didn't like. As I see it the ball is in SimpliSafe's court. I'd be happy to try all sorts of weird experiments and do packet captures for them if they would help SImpliSafe look into this.

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