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- Disconnecting the WiFi connection. Exclamation mark next to the network icon.

RoBsOn87 22077 14
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  • #1 17898456
    RoBsOn87
    Level 10  
    Posts: 20
    Rate: 3
    I have a problem with the Samsung A7, namely the wifi is disconnected after some time of using the phone (normal browsing and fb), the problem also occurs when the phone is in the sleeper screen, after unlocking you can see the wifi network icon, an exclamation mark at the bottom. Photo attached.
    At home, 2 of the same A7s work in the same network.
    I changed their names so that they are not similar, they have different IPs and the problem is on both of them the same. - Disconnecting the WiFi connection. Exclamation mark next to the network icon.
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  • #2 17898605
    kociol96
    Level 22  
    Posts: 655
    Help: 39
    Rate: 45
    Check available updates for the phone, download if there are any, if there is no backup of the phone content and do factory settings, remember to log out of your Google account, if there is one and / or check what account it is to be able to restore data from Google account.
  • #3 17899013
    tino2003
    Admin of GSM Group  
    Posts: 23677
    Help: 1971
    Rate: 2077
    Check if any energy saving option is enabled on the phone.
  • #4 17901752
    RoBsOn87
    Level 10  
    Posts: 20
    Rate: 3
    Energy saving is turned off. This is also done when browsing websites.

    Added after 2 [minutes]:

    As for updating or restoring factory settings, it looks like this. The problem occurred from the very beginning, later the system was updated to the new Android version but the problem persisted. I do not know if returning to the factory settings will help, since there was a problem before the last update.
    But maybe I am tempted.
  • #5 17901869
    rtvkce
    Level 29  
    Posts: 1614
    Help: 98
    Rate: 181
    Out of stupidity, check the router settings. Maybe she needs a reset.
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  • #6 17906963
    RoBsOn87
    Level 10  
    Posts: 20
    Rate: 3
    Restoring the router to the factory settings did not change anything. Now it only remains to reset the phones, but for this I have to sit down and do some backups.
    But it's strange that the problem only occurs on these two A7s at the same time.
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  • #7 17907297
    nutergsm
    VIP Meritorious for electroda.pl  
    Posts: 8429
    Help: 1031
    Rate: 1658
    Try to change the password to a different one or the encryption mode. In the router itself, also permanently add the MAC addresses of the phones.
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  • #8 17996589
    GosiaA7
    Level 1  
    Posts: 1
    Rate: 3
    I have the same. I don't know what to do, where to rummage anymore. Resetting the phone did not help, changing channels on the router also. I have the settings on the phone for no battery saving, 'forever' settings, changing the card from dual sim 1 to sim 2 also. I am using Netia.
  • #9 17997166
    nutergsm
    VIP Meritorious for electroda.pl  
    Posts: 8429
    Help: 1031
    Rate: 1658
    In that case, go to the service center or take advantage of the warranty.
  • #10 18318101
    piotrek08030
    Level 2  
    Posts: 2
    Rate: 1
    nutergsm wrote:
    In that case, go to the service center or take advantage of the warranty.



    hi, did you fix this problem? I have a galaxy a40 and the same problem, a netia spot router and I don't know what to do next.
  • #11 18318120
    RoBsOn87
    Level 10  
    Posts: 20
    Rate: 3
    - Disconnecting the WiFi connection. Exclamation mark next to the network icon. It just so happens that I have been testing new settings on the netiaspot router for several days and everything is working fine at the moment.
    Namely, on NetiaSpot, in wireless connections, do everything automatically, ie Channel, frequency and type of signal. - Disconnecting the WiFi connection. Exclamation mark next to the network icon.
  • #12 18318136
    piotrek08030
    Level 2  
    Posts: 2
    Rate: 1
    RoBsOn87 wrote:
    - Disconnecting the WiFi connection. Exclamation mark next to the network icon. It just so happens that I have been testing new settings on the netiaspot router for several days and everything is working fine at the moment.
    Namely, on NetiaSpot, in wireless connections, do everything automatically, ie Channel, frequency and type of signal. - Disconnecting the WiFi connection. Exclamation mark next to the network icon.


    and you could make a screen where you put it? I only found the channel and changed it to automatic, I don't know where to look for the frequency and type of signal.

    Added after 11 [minutes]:

    piotrek08030 wrote:
    RoBsOn87 wrote:
    - Disconnecting the WiFi connection. Exclamation mark next to the network icon. It just so happens that I have been testing new settings on the netiaspot router for several days and everything is working fine at the moment.
    Namely, on NetiaSpot, in wireless connections, do everything automatically, ie Channel, frequency and type of signal. - Disconnecting the WiFi connection. Exclamation mark next to the network icon.


    and you could make a screen where you put it? I only found the channel and changed it to automatic, I don't know where to look for the frequency and type of signal.


    I looked at your answer from the phone and I did not see any attachments - thanks I changed it as you wrote and will verify if it helped :)
  • #13 18396491
    Tedybear1977
    Level 13  
    Posts: 188
    Help: 9
    Rate: 37
    you have to check 3 things:

    Phone: Try connecting to the Wi-Fi network on another device, such as a laptop or friend's phone. If other devices are using the network, the problem is likely with your phone.
    Network: Check if your device can connect to a different Wi-Fi network, such as at a friend's house or a public network. If so, the problem is likely with the network.

    Internet: If your device can connect to a Wi-Fi network but can't access the internet, the problem is likely with your internet connection.
  • #14 18397756
    KRY5PIN
    Level 37  
    Posts: 3010
    Help: 312
    Rate: 463
    Samsung probably has it. For me, when I have to switch to T-mobile, the huawei E5577 router, only samsungs show an exclamation mark and disconnect. Others then work fine. It happens to me when more than 4 devices are connected to the router.
  • #15 18397821
    Tedybear1977
    Level 13  
    Posts: 188
    Help: 9
    Rate: 37
    I had it too, but the fault was on the side of poor data transmission in the router. Only I have a mobile net and there are often speed drops here.
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Topic summary

✨ The discussion revolves around a recurring WiFi disconnection issue experienced by users of the Samsung A7. The problem manifests as an exclamation mark next to the WiFi icon, indicating limited connectivity. Users have attempted various troubleshooting steps, including checking for software updates, disabling energy-saving options, and resetting the router, but the issue persists. Some users suggest changing router settings, such as password and encryption mode, while others recommend testing the connection with different devices to isolate the problem. A user with a similar issue on a Galaxy A40 also shares their experience, indicating that the problem may be related to specific router configurations. Overall, the consensus is that the issue may stem from either the phone settings or the router's performance.
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FAQ

TL;DR: Fix Samsung Wi‑Fi exclamation drops by setting 3 NetiaSpot Wi‑Fi options to Auto—channel, frequency, mode; "do everything automatically". Confirmed stable after tests. [Elektroda, RoBsOn87, post #18318120]

Why it matters: This FAQ helps Samsung Galaxy A‑series owners (A7, A40) and NetiaSpot users fix Wi‑Fi exclamation disconnects fast.

Quick Facts

How do I fix the Wi‑Fi exclamation mark on Samsung with NetiaSpot?

Use the router-side Auto settings that resolved this issue.
  1. Log in to NetiaSpot.
  2. In Wireless, set Channel, Frequency, and Signal type to Automatic.
  3. Save and restart Wi‑Fi. As one user put it, "do everything automatically." This stopped drops after several days of testing. [Elektroda, RoBsOn87, post #18318120]

What does the exclamation mark on the Wi‑Fi icon indicate?

It shows the phone sees the Wi‑Fi but lost internet access. Users reported the exclamation mark after browsing or waking the screen, with Wi‑Fi disconnecting. The Galaxy A7 displayed the network icon with an exclamation mark during outages. [Elektroda, RoBsOn87, post #17898456]

Should I update Android or factory reset the phone?

Yes, check for system updates first. If none, back up your data. Sign out of your Google account. Then perform a factory reset. Signing out prevents account lock and eases restore. After reset, sign in and test Wi‑Fi before reinstalling many apps. [Elektroda, kociol96, post #17898605]

Factory reset and channel change didn’t help—what next?

This happens. One user reset the phone and changed router channels, yet disconnects persisted on Netia. Move on to router-side configuration changes described in this FAQ, rather than repeating phone resets. Apply them and retest. [Elektroda, GosiaA7, post #17996589]

Could battery saving cause Wi‑Fi drops?

Yes. Disable any power-saving options that restrict background data or Wi‑Fi during standby. Ensure Wi‑Fi stays on during sleep in Advanced Wi‑Fi settings. Reboot after changes and retest. [Elektroda, tino2003, post #17899013]

Is resetting the router worth trying?

Yes. Check the router configuration and try a full reset to defaults. Misconfigurations can cause intermittent disconnects. After reset, reconfigure Wi‑Fi with a unique SSID and strong password. If drops persist, proceed to adjust Wi‑Fi mode and channel as noted above. [Elektroda, rtvkce, post #17901869]

Does changing the Wi‑Fi channel help?

It may not. One user changed channels and still saw the exclamation and drops. Channel changes alone might not solve compatibility issues. Try broader Wi‑Fi setting changes as well. [Elektroda, GosiaA7, post #17996589]

Should I change Wi‑Fi encryption or whitelist MAC addresses?

Yes. Update the Wi‑Fi password and try a different encryption mode on the router. Also, add the phones’ MAC addresses to the allowed list. As one expert advised, "permanently add the MAC addresses of the phones." Save settings and test. [Elektroda, nutergsm, post #17907297]

How do I isolate whether the phone, Wi‑Fi, or internet is at fault?

Follow a three-part check.
  1. Connect another device to your Wi‑Fi; if it works, suspect the phone.
  2. Connect your phone to a different Wi‑Fi; if it works, suspect your router.
  3. If Wi‑Fi connects but internet fails, suspect your ISP. [Elektroda, Tedybear1977, post #18396491]

Does this get worse with many devices connected?

Yes, on some mobile routers. One user saw drops when more than 4 devices connected to a Huawei E5577. Only Samsung phones showed the exclamation and disconnected, while others stayed online. Reduce connected devices or upgrade the router. [Elektroda, KRY5PIN, post #18397756]

Is this a NetiaSpot/Netia-specific issue?

It can be router-specific. A NetiaSpot change to Automatic channel, frequency, and mode resolved Samsung drops for one user. If you use NetiaSpot, apply those Auto settings and verify stability. [Elektroda, RoBsOn87, post #18318120]

Will switching SIM slots or dual‑SIM settings help?

Unlikely. One user swapped SIMs between slot 1 and 2 with no improvement. The symptom points to Wi‑Fi or router configuration, not cellular settings. Focus on router Wi‑Fi adjustments first. [Elektroda, GosiaA7, post #17996589]

Could poor router bandwidth or mobile internet cause the exclamation?

Yes. On mobile internet, speed drops or weak data throughput can trigger connectivity checks to fail. That shows as an exclamation and disconnects on phones. Stabilize the mobile link or switch to a stronger connection for Wi‑Fi backhaul. [Elektroda, Tedybear1977, post #18397821]

When should I use warranty or service?

If software, settings, and router changes fail, use support options. As advised, "go to the service center or take advantage of the warranty." Document your troubleshooting steps to speed the process. [Elektroda, nutergsm, post #17997166]

Why are two identical phones both affected?

This points to a shared environment factor. The poster had two Galaxy A7 units on one home network with the same disconnects. That suggests router settings or compatibility rather than isolated device faults. Focus on the Wi‑Fi access point. [Elektroda, RoBsOn87, post #17898456]
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