Extreme high ping rates
Have had ATT on-site and on line via phone tech look at it they agree it isn't us (after numerous reboots, tests and equipment switch outs). Our fixed wireless normally has ping rates between 49 and 70 w/download speeds of 15MB to 20 MB uploads of .7 MB to 2.1 MB. however, regularly after about a week of good service the ping rates jump to 500 to 1600+ and the service drops to 3-4 MB down and .15 or less MB up. As the ATT Tech on site and your 1st level on-line support agree it's not me (or my equipment, or my servicing cell tower, said we had a great connection to/from it), I believe it's your network!! Somebody or something reconfigures or changes it regularly causing this issue.