Troubleshooting PW3 - Wi-Fi issue (won't find available networks)

[valp]

Hey guys, I have two Kindle PW3 (2015, black, Wi-Fi only) here.

Since I moved to my new home, I've noticed that both won't find any network to connect to (in my old house it worked fine), even though there are in fact dozens to pick from (apartment complex). These networks show up in my cellphone, tablets and notebooks and I've tried two routers and multiple chanels here (2,4Ghz network).

Funny thing is, if I bring my Kindles to my work, they see the available networks there and connect fine to my phone's router. Then I get home, start the devices to find no network available.

I restarted the devices several times and reseted one of them to factory settings, but with no success.

Sometimes I turn them on and I see the networks in faded text, then it updates the screen and they're gone again.

I contacted amazon and they said that they're having general issues with Kindle Wi-Fi in Brazil and asked for some logs.

Have you guys seem something like that before?
Thanks a lot!

[Cinisajoy]

Do you have internet coming into your house or are you just trying networks your device sees?
First one could be a problem or you need to put in the modem/router password, second one means you need to get your own internet.

[valp]

Originally Posted by Cinisajoy

Do you have internet coming into your house or are you just trying networks your device sees?
First one could be a problem or you need to put in the modem/router password, second one means you need to get your own internet.

I have Internet connection and wireless network of my own. Where I live there are around 20 other reachable wireless networks from other houses, but my Kindles usually won't even find any.

[Cinisajoy]

Originally Posted by valp

I have Internet connection and wireless network of my own. Where I live there are around 20 other reachable wireless networks from other houses, but my Kindles usually won't even find any.

Then your device does have a problem.
I have actually been asked why can't I connect to my neighbor's internet now. That was why the question.

[valp]

Originally Posted by Cinisajoy

Then your device does have a problem.
I have actually been asked why can't I connect to my neighbor's internet now. That was why the question.

I see. It's a strange issue, since it does seem to work fine in some other geographical situations.

Another funny thing is one of the logs: "all_wpa_supplicant_logs", which seem to reveal that the device actually finds the networks in the background, but doesn't let me see them or try to connect in the normal interface.
Here's a piece of the log:

170225:130402 wpa_supplicant[4722]: nl80211: Scan trigger
170225:130403 wpa_supplicant[4722]: nl80211: Event message available
170225:130403 wpa_supplicant[4722]: nl80211: New scan results available
170225:130403 wpa_supplicant[4722]: wlan0: Event SCAN_RESULTS (3) received
170225:130403 wpa_supplicant[4722]: nl80211: Received scan results (18 BSSes)
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Start scan result update 838
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1524 BSSID 44:55:b1:fa:2f:b4 SSID 'HUAWEI-HU6S'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1525 BSSID e8:6d:52:95:4f:0d SSID 'Costa'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1526 BSSID 94:cc:b9:88:2e:df SSID 'AP01'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1527 BSSID 9c:7d:a3:ea:a0:74 SSID 'VATV'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1528 BSSID 5c:e3:0e:10:0d:89 SSID 'NET_2GDF768E'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1529 BSSID 90:0d:cb:2f:5a:b0 SSID 'netvirtuaapt35'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1530 BSSID 28:32:c5:12:18:78 SSID 'netvirtuaapt404bl1'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1531 BSSID 74:9d:8f:48:22:1c SSID 'Copel 04'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1532 BSSID d8:97:ba:8a:d0:0a SSID 'D2-701'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1533 BSSID 2c:e4:12:c3:fb:a5 SSID 'GVT-FBA1'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1534 BSSID 48:83:c7:9b:b1:f4 SSID 'AleluiaAmem'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1535 BSSID 2c:e4:12:80:57:29 SSID 'GVT-5725'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1536 BSSID 14:cf:e2:f5:41:d0 SSID 'NETvirtua_ap 601'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1537 BSSID 7c:4f:b5:e9:df:b9 SSID 'GVT-DFBA'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1538 BSSID 8c:04:ff:7f:24:e4 SSID 'maldaner'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1539 BSSID 14:91:82:d5:e9:10 SSID 'Casa da Isa'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1540 BSSID 96:0d:cb:2f:5a:b0 SSID '#NET-WIFI'
170225:130403 wpa_supplicant[4722]: wlan0: BSS: Add new id 1541 BSSID 2a:32:c5:12:18:79 SSID '#NET-WIFI'
170225:130403 wpa_supplicant[4722]: BSS: last_scan_res_used=18/32 last_scan_full=0
170225:130403 wpa_supplicant[4722]: wlan0: New scan results available
170225:130403 wpa_supplicant[4722]: wlan0: Checking for other virtual interfaces sharing same radio (phy0) in event_scan_results
170225:130412 wpa_supplicant[4722]: CTRL_IFACE monitor attached - hexdump(len=22): 2f 74 6d 70 2f 77 70 61 5f 63 74 72 6c 5f 32 32 37 30 37 2d 31 00
170225:130412 wpa_supplicant[4722]: wlan0: Control interface command 'STATUS'
170225:130412 wpa_supplicant[4722]: wlan0: Control interface command 'LIST_NETWORKS'
170225:130412 wpa_supplicant[4722]: wlan0: Control interface command 'REMOVE_NETWORK 0'
170225:130412 wpa_supplicant[4722]: CTRL_IFACE: REMOVE_NETWORK id=0
170225:130412 wpa_supplicant[4722]: wlan0: Control interface command 'ADD_NETWORK'
170225:130412 wpa_supplicant[4722]: CTRL_IFACE: ADD_NETWORK
170225:130412 wpa_supplicant[4722]: CTRL_IFACE: SET_NETWORK id=0 name='group'
170225:130412 wpa_supplicant[4722]: CTRL_IFACE: SET_NETWORK id=0 name='key_mgmt'
170225:130412 wpa_supplicant[4722]: CTRL_IFACE: SET_NETWORK id=0 name='pairwise'
170225:130412 wpa_supplicant[4722]: CTRL_IFACE: SET_NETWORK id=0 name='priority'
170225:130412 wpa_supplicant[4722]: CTRL_IFACE: SET_NETWORK id=0 name='psk'
170225:130412 wpa_supplicant[4722]: CTRL_IFACE: SET_NETWORK id=0 name='ssid'
170225:130412 wpa_supplicant[4722]: ssid_from_txt: decoding [Lenovo Z2 Plus]
170225:130412 wpa_supplicant[4722]: ssid_from_txt: decoded to - hexdump(len=14): 4c 65 6e 6f 76 6f 20 5a 32 20 50 6c 75 73
170225:130412 wpa_supplicant[4722]: nl80211: Event message available
170225:130412 wpa_supplicant[4722]: nl80211: Scan trigger
170225:130413 wpa_supplicant[4722]: nl80211: Event message available
170225:130413 wpa_supplicant[4722]: nl80211: New scan results available
170225:130413 wpa_supplicant[4722]: wlan0: Event SCAN_RESULTS (3) received
170225:130413 wpa_supplicant[4722]: nl80211: Received scan results (16 BSSes)
170225:130413 wpa_supplicant[4722]: wlan0: BSS: Start scan result update 839
170225:130413 wpa_supplicant[4722]: wlan0: BSS: Add new id 1542 BSSID 9c:7d:a3:ea:a9:d0 SSID 'luizhdr'
170225:130413 wpa_supplicant[4722]: BSS: last_scan_res_used=16/32 last_scan_full=0
170225:130413 wpa_supplicant[4722]: wlan0: New scan results available
170225:130413 wpa_supplicant[4722]: wlan0: Checking for other virtual interfaces sharing same radio (phy0) in event_scan_results