Archer C1200 5ghz not stable after firmware upgrade to 3.07

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Archer C1200 5ghz not stable after firmware upgrade to 3.07

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Archer C1200 5ghz not stable after firmware upgrade to 3.07
Archer C1200 5ghz not stable after firmware upgrade to 3.07
2021-01-22 16:47:31
Model: Archer C1200  
Hardware Version: V3
Firmware Version: 3.07

I updated my firmware to 3.07 and my 5ghz SSID is now very unstable.  Sometimes it seems normal.  At times it drops down to speeds as low as 1mbps. Sometimes it's not even able to be seen.  All the while, the 2.4ghz network is completely normal and stable.  Everything was great before the upgrade.

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