Vivian wrote It seems that your W9980 is not running the latest firmware. Besides, if you want TP-LINK people to fix the issue ASAP, you should contact them directly....

Region : Ireland Model : TD-W9980 Hardware Version : V1 Current Firmware Version : 0.6.0 1.8 v0021.0 Build 140925 Rel.32089n Latest Firmware tested: TD-W9980_V1_141215 ISP : Eircom eFibre VDSL2 (no...

I can confirm I have the same problem with a TP-Link TD-W9980 model on the latest firmware as of this date (0.6.0 1.10 v0021.0 Build 141215 Rel.41342n). My ISP is Eircom which is an Irish VDSL...