Wireless LED flashing red

[#1]

What does this mean please? Can still use my Squeezebox wirelessly, but other things aren't working so well.
Please help.
Thanks

[#2]

If you post what type of wireless router / access point you are using then I am sure someone here can help
Richard

[#3]

Thomson Router that comes with plus.net

[#4]

Hi
According to page 11 of the TG585 the user guide here it means that no security is enabled on the WIFI 
I would strongly recommend that you enable WIFI security.
As a minimum use WPA, but WPA2 is better, do not use WEP as it is trivial to hack into.
Richard