Issues with SMB and SMB on Windows 10.
Issues with SMB and SMB on Windows 10.
You have another device connected to the network to investigate. This might help identify the issue. It could be related to a firewall or antivirus blocking writes while allowing reads. I’d also attempt to write a large file locally to the shared folder to check if the drive’s write speed is affected. This drive is likely where you download Linux ISOs, which can cause significant write delays on spinning disks. Additionally, it seems some Android devices aren’t fully compatible with modern SMB protocols and may require older versions in certain programs or features.
I received a USB-C flash drive and routinely back up my files on my computer. Only a short time has passed since the SMB issue started, so it’s not a major problem. I’m considering a factory reset as an alternative. My phone functions similarly (though slower, which is typical for an older model). I rechecked and confirmed my phone can now upload files without trouble. The tablet also works fine. I reviewed my Windows update history and found only one update—Windows Defender Antivirus installed overnight. This doesn’t add up because I recall disabling the antivirus for testing. It seems Windows Defender was actually blocking SMB uploads and interfering even when turned off. Thanks, Microsoft. I’d like to rate your response as the solution, but another user thought the antivirus was the issue. If I could, I’d also mark yours as helpful. Appreciate your advice.
As discussed earlier, all devices were experiencing the same problem but are now functioning properly. It appears your observation was accurate. The issue likely resolved after a Windows Defender update made during the night. I already tested it and even tried a RAM disk just to be safe. Everything is back to normal. My previous devices worked well, and CX explorer supports SMB1, SMB2, SMB3 with auto-select. SMB1 was disabled on my computer. Your advice helped, so I’ll note your suggestion as the solution. Thanks again.
I really wish I could move past Windows completely. Linux isn’t perfect, but it’s better than having to test software for Microsoft.
I had to switch everything except for some rare games. The privacy concerns were too much, and I’d rather face new challenges than deal with unexpected crashes from a bad update. Think about that update a few years back when anyone using a USB drive would end up with a broken boot manager? That’s exactly what happened to me the weekend I was wrapping up a 20-page paper.
I avoided that issue since I never leave USB drives connected after use. Yet I noticed many failed updates such as the one that disrupted NDIS camera feeds last summer. And as usual, you can't reach anyone at Microsoft. They seem hesitant to listen to customers. They should, because they understand what people need.