Only from what tp-link tells us about the router and the SMB version used, there is nothing under settings that tells you what the SMB version is, at least not on the Archer C1200. I did just get a...

@Hawaii-5-0 That is far worse than most here are seeing. You might want to connect your drive to your computer and make sure power saving features are turned off. The drive should be setup so that it...

@Kevin_Z Yes and yes. I have to rescan the drive under the advance tab to get it to work again like most others on here. I have already tried all suggested fixes and nothing will keep it online, only...

@Kevin_Z Model: Archer C1200 Hardware Version: V3 Firmware Version: 3.0.6 Build 20200401 rel.71690

Unless tp-link fixes the firmware I do not think we will be seeing this fixed. Most likely not a lot of users use this feature on the router so I am sure it is not a high priority for them.

@don54321 Yes, mine also can be rescanned and then I can access it again. Seems to be a common problem with tp-link routers. Not sure why they didn't fix it on the last firmware update.