Wifi 5ghz connection problem

[FayazCA]

Wifi keeps on disconnect & reconnect in some intervals when its connected with 5ghz band. The same works fine in laptops(issue occurs only on samsung phones)

This has been observed almost all models like M, A series. So far i am facing this issue in my both M30s and A51. 2.4 Ghz is working fine without any disconnection. 

Note: We tried our best that reset and wipe cache partition and all but the problem still persists, samsung please fix this issue. 

This issue still persists since long back (more than a year) but samsung customer care always close the tickets by just ask to reset. 

More Info: https://r2.community.samsung.com/t5/Galaxy-M/Wifi-5ghz-connection-problem-In-m30s/td-p/3103689

[amilmohammedva]

have you checked your software

[FayazCA]

what to check in software? I have updated with latest version. I usually use odin tool for any software upgrade.

[SK1955]

Does A51 support 5ghz, in the Hotspot settings 5ghz option is no there, so it wifi supports 5ghz??

[FayazCA]

This issue is not about wifi Hotspot and its about Wifi connection.

[arunnechlani]

5ghz is much faster bandwidth but the range is limited and 2.4ghz is reverse of it. Usually laptop catches 5ghz even if the last bar of network is available as there reception is very stronger than phone. You need to tweak your router settings to give wifi 5ghz range till last corner of the house.

[FayazCA]

oh come on bro, i am using my mobile very near by wifi router but its still happening. Anyways what kind of tweak need to do to expand the range? can u pls share?

[arunnechlani]

Which router you have?

[FayazCA]

TPLink archer c5

[arunnechlani]

OK login to your tp link router page goto both 5ghz and 2.4ghz settings page and set the transmission power to high. Keep the channel width to the highest one. Select channel based on some Android app which recommends less interference for channel. If you don't know about Android app thing than keep it on auto

Look at this page for reference
https://www.tp-link.com/us/support/faq/2066/