Recently i have got a SMSF drop from my isp. isp end have a sfp media converter and they give me the other sfp of that pair with a media converter. after successful link i decided to bypass the media converter and put the sfp directly in my 2011uias. after petting the sfp link established and all was okay but suddenly after 2 days i realized that my internet was gone. i saw that fiber link is okay i can see tx and rx light level but there is no ip connectivity. then i deside to return to the media converter setup. after connecting with media converter all was okay. is anybody faced this kind of problem?