I did eventually fix the problem (much, no doubt to Bro's dismay). The solution was explicitly disable SMB1 in Windows features, reboot then explicitly re-enabled it again then reboot again. Somehow,...

Which makes me wonder if I've got it all wrong. Maybe the libraries I am using have been SMB2 all along (I'm not sure how to tell) and it's a totally different problem, because I have no difficulty...

Sorry Bro67, I genuinely don't understand what you're saying here. Which app are you referring to when you say "an app for Android that does not even use SMB1"?

If you're talking about ES file...

No, you totally misunderstand me. I'm not blaming anyone. I understand the reasons for MS withdrawing SMB1 and fully support that decision. I have every intention of upgrading my app to a later SMB...

You are right, it's the Windows side I was asking about. I can confirm that SMB1 is checked under Windows features so I remain perplexed.

Thanks for the suggestion though. I may try turning it...

I did wonder about that but, unfortunately, I am so disgusted by the company's underhand tactics with the free version that I will never buy anything of theirs. This is partly a matter of principle...

Bro67, I don't doubt the information I am being given and I have the greatest respect and gratitude for your help. You have my unreserved apologies if I have mistakenly given a different impression....

This is getting silly. To "keep" using SMB2 is not an option for me. What ES does or does not do is irrelevant. I am talking about my app that I am developing. Much as I would like to move to SMB2,...

In an ideal world, I would agree but I don't really have that option in the short term. Also, I don't perceive any great danger in a network environment that is isolated from the outside world.

But, unfortunately, the Android world hasn't really caught up with this. SMB2 libraries available for app developers like myself to use are only just starting to appear and most legacy apps seem to...

I don't really understand what you mean by disabled in Android. So far as I'm aware, Android itself doesn't offer any facilities to access network shares via SMB. It's all done by third party apps,...

Something has happened to my laptop (running Windows 10) such that Android apps using SMB1 protocol can no longer connect to it. When I try to access the laptop from the Android ES File Explorer app,...

I somehow managed to get an infection of DNS Unlocker on my laptop. Using various products (Malware bytes McAfee etc) I have managed to eradicate it from most places (Firefox now clean etc.) but it...