WNDR4300v2 - Persistent Issues with 5GHz Network?

[emgeesea]

I have owned my WNDR4300v2 router for about 5-7 years, and lately its 5GHz network persistently slows from normal +100Mbs speeds to 5-10Mbps. I'll then connect to the 2.4GHz network in the router, which operates at about 30-50Mbs. Usually when I switch back to the 5GHz network, the +100MBs speed is restored.

Any ideas why the 5GHz network in this router keeps dropping speed?

Thanks,

[plemans]

have you tried reinstalling the firmware, doing a factory reset, and then installing it again? 

When devices start to get old, settings/firmware can get corrupted. by reinstalling the firmware and factory resetting, if thats the problem, it should clear those issues out. 

Or it could be the device getting old. 

[emgeesea]

I'll try that, thanks.

[stevesails34]

did you find a fix?