Significant degradation in USB performance

[Vishnu Rao]

I have my RT-AC1900P doubling as a NAS by the use of a USB connected SSD. Since the last couple of firmware updates for the router, I notice the throughput has significantly degraded. I was able to get ~30 MBps read and write speeds. But now write speeds are about 7-8 MBps. But read speeds are truly terrible at 0.13 MBps.

This is measured connected via ethernet cable. I am currently running firmware 384.16. I have tried different hard drives. same issue. Also tried ext3, ext4, NTFS formatted drives. Same results.

Two questions:
1. Anyone else have a similar experience? Is this a possible bug in the new firmware.
2. I would like to downgrade to an older firmware. Is this allowed on the Merlin FW? I don't want to try and risk having to set up an otherwise perfectly working wireless network. Especially with the need to work from home these days.

 

[L&LD]

How long have you been doing 'dirty' upgrades on this router for?

 

[Vishnu Rao]

About 7 months. I bought it August of last year.

 

[L&LD]

Possibly time for a full reset.

Please see the link in my signature for the M&M Config and Nuclear Reset guides along with other information to get your router/network back to a good/known state.

 

[Vishnu Rao]

I can try that this weekend. But a full reset should be be required for something thats relatively newly set up. I previously had a RT-AC68U which ran flawlessly for 3-4 years. I don't recall ever doing a full reset on it.

 

[L&LD]

7 months is not newly set up.

Many changes have happened since.

 

[Vishnu Rao]

That fixed it. Thanks for your help.

Planning to do a full new configuration instead of restoring a backup of my old cfg and jffs.