Hi I've been hearing about MAC randomization supposedly happening on wifi probes since Android 6.0. I went ahead and did a packet capture on my phone while it was disconnected from all networks inside a faraday cage with an access point inside the cage to listen to the probes. Not once did I capture any MAC randomization occurring. I was hoping some of you knew a setting or a config that was needed to trigger the randomization to occur?
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Hi
I've had a search in the forums but haven't seen any other posts re. this but wondered if anyone had any ideas?!
Basically I'm having problems connecting to some networks with my Tab 10.1 (stock, updated OTA to the latest TouchWiz UX last week).
I first had a problem last week when I took the device into work - there's an 802.1x EAP network there but it wouldn't even show up in the network list. My SGS2 connects to it without an issue.
Then when I got home tonight (after happily using it at my parents' house during the day) I found it wouldn't connect to my home WiFi (hidden SSID, WPA2). It had connected to this network fine in the past, but now was just sitting showing it as 'not in range' network. At first I thought it might be a router issue (it used to be a little flaky), but then I saw that my iPod and SGS2 were both connecting and working on it without a hitch.
I couldn't see the network at all in WiFi Analyzer (similarly to at work), although it was showing my neighbours' WiFi networks fine. I tried deleting the saved entry and telling the router to broadcast the SSID but it still wouldn't work.
I then put on my WiFi hotspot on my SGS2 (also a previously remembered connection) and it worked absolutely fine!
Does anyone have any ideas where to go next apart from doing a full reset? (which although not the end of the world would be quite a pain).
Thanks for any suggestions/tips!
OK, bit the bullet and restore my device to factory settings - it STILL can't see my home WiFi, despite my SGS2, laptop and iPod all connecting to it fine. It is however showing up two networks belonging to neighbours and also my SGS2 if I put it in WiFi hotspot mode!
Any suggestions folks??
Sounds like a route issue, did you reboot the router? Is the router on a channel below 12?
Hi thanks for the reply!
I actually just spotted a post at http://www.thegalaxytabforum.com/index.php?/topic/5511-my-wifi-no-longer-works/ with the same issue.
It looks like Samsung have mucked something up when they made the Touchwiz UX update - it now blocks WiFi channels 12 upwards, when the old stock Honeycomb firmware didn't do this. I'd moved my router onto 13 to reduce congestion and I guess the work one must be on 12/13 too.
I can see from the table at http://en.wikipedia.org/wiki/List_of_WLAN_channels that 12/13 are only allowed under low-power conditions in the USA, but this isn't the case elsewhere so they shouldn't have locked it down outside of the USA.
This also happend to me
pwhooftman said:
Sounds like a route issue, did you reboot the router? Is the router on a channel below 12?
Click to expand...
Click to collapse
As I had setup an additional router in my house (with assigned a high numbered -or so i thought- fixed IP address) for some reason my main router tryied unseccesfully to assign the same IP to my SGT as the router. This had obviously conflicts and could not log in.
Went into the router eliminated the fixed IP address and voilá! it got working again, all IP a dinamic!!
Regards
Hi,
I lose my wifi connection on my android phone and tablet when I move from one part of a building to the other. My connection is perfectly fine if I don't move.
My phone and tablet eventually say, "connecting to wifi" and hangs there until I turn off my wifi and then turn it back on.
Here is the detailed story:
I work in a large building with multiple floors. I assume there are multiple routers per floor. My office is on the top floor and my lab is on the first floor. I make multiple trips between floors per hour, and it gets annoying to constantly reset the wifi receiver in my phone. Since this problem happens on my phone and my tablet, I'm sure it's not phone specific. I'm also guessing that no one else notices because they all pay outrageous prices for 4G and don't use wifi on their phones. They don't see problems on their laptops because their laptops are asleep when moving between floors.
After a little research, I think the cause might be when I move from one router in my building to another, my phone wants to keep the DHCP IP, but the new router won't accept my phone, because my phone is already connected to the old router. When I reset the wifi receiver on my phone, I reset the DHCP IP. Is this correct?
Is there an android app that says, "if connecting to wifi network takes longer than 20 seconds, reset the wifi receiver?"
Thanks,
Daniel
Are the SSID's of all the routers the same?
wifi administrator is not familiar with WDS function i assume.. best user friendly system would be Ubiquity Unifi or Mikrotik WDS Mesh.
I work in an office with three old Cisco Aironet 1130 access points and have no problem moving between them with my Sensation.
They're all on the same SSID and on the same subnet.
If I leave the building at one end, go outside and lose Wifi connection, then come in at the other end of the building, my phone just re-connects.
When your phone connects to a network it should always go through the process of requesting an IP address even if the lease hasn't expired.
Potentially what could happen is your office is serviced by one SSID, while your lab is serviced by another, and your phone is just able to talk to the other wifi network so doesn't release itself and renew with a new IP address.
This morning, I got to work and my Nexus 10 connected to the WiFi with no problems. I plugged in my tablet and went through the encryption process (since I keep work emails on my tablet). The Encryption process worked perfectly. However, after encryption, my tablet now refuses to connect to the WiFi, returning an error of "Avoided poor Internet connection" despite showing a good signal.
A Google search shows that this was a known issue in Ice Cream Sandwich, but I can't find anything related to Jelly Bean. I tried some of the solutions of going into /data/misc/DHCP and deleting the contents there, then rebooting, but this did not resolve the issue.
Any suggestions?
(My device is rooted and running Android 4.2.1 and the Feb 04 build of AOKP.)
Did you try setting your IP info as static on the tablet?
And is the work wifi using WPA2 Enterprise encryption? My guess would be the wifi is not set securely enough so the tablet avoid using it since you want to stay encrypted
EniGmA1987 said:
Did you try setting your IP info as static on the tablet?
And is the work wifi using WPA2 Enterprise encryption? My guess would be the wifi is not set securely enough so the tablet avoid using it since you want to stay encrypted
Click to expand...
Click to collapse
As far as work WiFi, it's certainly secure enough. I work at NASA. Regarding static IP, I attempted to set a static IP at both work and home, to no avail.
O guess I'll be wiping my device to remove encryption.
My nexus 4 running stock 4.2.1 (but rooted) has developed a wifi quirk. It suddenly can't get an IP address on our office wifi network. It's had no trouble before the last few days. Whats wierd is
* My N4 has no trouble with other wifi networks.
* My N7 has no trouble with the same office network now or before.
I can snoop the DHCP server for the office network and I see the DISCOVER packet and the reply with the IP /lease going out.
If I use tcpdump on the N4, I see the DISCOVER packet go out but never see the reply with the lease info come back.
The N4 and N7 are using the same access point.
The DHCP server, the access point, and the N4 have been rebooted with no improvement.
Any ideas?
Hi All, I recently bought an iMars A75789 (8227L) from Banggood, All works fine so far except the WiFi has an issue, the MAC address changes every time the head unit is power cycled, the first 3 out of 6 sets of double characters seem to remain the same while the rest changes on power cycle, has anyone had the same issue and been able to fix it or somehow turn off MAC Address Randomization? would be grateful for any help as its a pain to try and tether my phone using it as a WiFi hotspot and entering the mac address every time.
Thankyou.
Video showing mac address changes: https://youtu.be/DqrkLLvzKvQ
Hi, I have the same issue with this variant from Aliexpress. I have inquire help and they replied that they can't change this. I have searched everywhere and it seems this is something implemented in the OS and there is no option to turn this off. It appears that since Android 8, integrator's and implement the random mac address to their devices. this feature make it safer for devices when they are connected to publics WIFI by being hard to trace.
This was a issue for me because I am controlling the internet access with Circle and brought up an new device each time my car was starting and then return home. So It brings a list of a tons of the same device with different mac address.
what I have done is to add an older router in my garage with a different WIFI and keep mu head unit insulated to my controlled WIFI. since then no more WIFI spoofing!