Over the past few months we have had issues at home with wifi connections being lost by various devices in the house. Often, the only way to reconnect is to turn wifi off on one or two devices & then the one you are using sorts itself out.
Its a D Link DSL 2780 from TalkTalk which has recently had a firmware upgrade to (allegedly) solve any connection issues. According to their tech support there is no limit to the number of devices that can be wirelessly connected but I have a feeling, from what I've read on t'interweb, that there may be a bandwith issue.
I really don't get all this modern jargon but can anyone try & explain/diagnose what the issue might be please?