[I cant log in,,, error ,,, DNS unable to resolve host name]

Try again I finally got back on SL ,, I didnt do anything it just came back 

[I cant log in,,, error ,,, DNS unable to resolve host name]

I have been having same problem for hours ,

tried shutting down restarting everything  NO luck 

Tried using my phone as modem something I have done numerous times when telephone lines are down or slow  NO luck

Tried SL Singularity and firestorm viewers same result 

cleared DNS cache as instructed got message  cache cleared successfully 

I can log into other grids no problem the problem is I cant log into SL 

 

[DNS could not resolve the host name?]

got same problem now here in Australia , unable to resolve host name 

[I try to login to SL and keep getting message unable to resolve host name ,]

Unable to login to SL  tried several times , can log into other grids no problem with viewer  keep getting message unable to resolve host name , What going on ? I use Singularity and its up to date