Why won't my 3ds connect to the Internet?

I've set up the Internet Profile on my 3DS, but since start of this month, it does not connect to the internet at all!
All the other devices can connect to the Internet , but the 3DS won't! What should I do?
Update: Every time I try connecting, I recieve the following error code: 003-1099
Best Answer
According to Nintendo, this is a generic issue. I'll compile some fixes for you:
1) Make sure that any other interfering devices, such as microwaves and cordless phones, are turned off.
2) Make sure that the Nintendo 3DS is within 30 feet of the wireless access
point and facing in its general direction.
3) You might have a MAC filter in your wifi, try to connect from a pc/phone/tablet etc that didn't connect before.
If you aren't using a home wifi and a public one, like hotel wifi:
4) Ensure the Hotspot location does not require an internet browser to setup an account, accept a use agreement, or enter a password before accessing their Wi-Fi service. If the location requires any of these items, you will not be able to connect to the Internet with your Nintendo 3DS.
Nintendo states that if these don't work, you should call 1-800-895-1672 and ask for help from them for your specific case.
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How do I connect my 3DS to WiFi 2020?
Complete these stepsHow do I fix error code 003-1101 on 3DS?
Error code 003-1101✯'Why won't you talk!'✯ ↝ GLMM (re-upload)
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