I have a possibly related problem.
Two iMacs and a Windows 7 laptop, HomeHub 5.
I have the main iMac on a cable, the other and the laptop via WiFi.
The laptop can print to the cable iMac's printer but the second iMac cannot see the first iMac on the network - no shared driver or printers.
If I unplug the LAB cable and make the main iMac use WiFi, then the second iMac immediately sees it and can print.
So there seems to be something wrong with how the wired connections are implemented on the HomeHub5.
I've also had no end of hassle trying to get the wired iMac to see a NAS drive (had similar problems with HH3 too). I want this to be a wired connection because it makes big backups much faster than via WiFi but frequently the iMac cannot find its TimeMachine files on the NAS drive and even when it can (after lots of hopeful rebooting, restarting the router, restarting the drive, running discovery tools etc) it tends to drop the drive again shortly after doing its backup.
If I run the HH5 cable into an old spare Linksys router (or a 4-port hub) and use it to feed both the iMac and the drive then there is no problem at all (apart from wasting electricity). BT says this is a drive problem and Seagate say it is a router problem!
Does anyone know of a replacement for the HomeHub5 that actually works?
After a few days of pulling my hair out I cam across this solution - worked straight away - thank you.
This is brilliant and works without a hitch. i have been looking for a solution to my WIFI issues for 3 months and numerous calls with Apple. Thank you for this....I can finally sleep peacefully
Thanks for this post. Was having same problem and your solution resolved it.
Brilliant fix! Thanks so much for posting - brilliant solution to an intractable and very frustrating problem!
Three days after switching off the 5Mhz wireless, it does seem to be working much much better - something clearly happened around April 25th when BT again "updated" the hub. Really annoying.
I am still waiting/wondering if anything follows this - like reduced functionality in other areas, but our Broadband speed in Susses is so slow, it is difficult to tell!
Any other comments will be most welcome to hear - further experiences.