Consistent connection interruption after area network "enhancements" made on 8/27

Hello,

My area (apartment complex) had network enhancements performed on 8/27. Since then, I am constantly unable to establish connections without it periodically dropping and picking back up.

Symptoms include disconnecting and reconnecting from Teams calls, disconnecting and reconnecting (within seconds) on video games, navigating tabs/websites and being stuck loading a certain page, unable to even sign into xfinity.com (tried incognito and regular browser). I have not experienced these symptoms when connecting to a local xfinity hotspot.

All of these issues are occurring on multiple devices, utilizing either ethernet or wifi (have tried 2.4 GHz and 5 GHz bands), so I've verified it's not an issue with any of my devices.

I have reset the gateway, had a xfinity engineer via the chat feature reset the gateway after submitting new refreshed signals. 

What's odd is this morning after I reset the gateway, unplugged the gateway, it was stable for the most part until 1 PM EDT.

I'm at a loss on what to do here. I can't even stay logged into my gateways admin page long enough to grab the logs before getting kicked out and having to sign in again.

Gateway/modem is an Arris XB7.

Connection speeds should be 800 MB/s.

Trace routes below:

C:\Windows\System32>tracert www.xfinity.com

Tracing route to e10994.dscx.akamaiedge.net [2600:1408:c400:1884::2af2]
over a maximum of 30 hops:

  1     1 ms     1 ms     1 ms  2601:140:9081:23c0:d66c:6dff:fe11:73a6
  2    10 ms    13 ms    12 ms  2001:558:1010:ed::2
  3    15 ms    10 ms    12 ms  po-70-rur301.alexandria.va.bad.comcast.net [2001:558:342:2f1::1]
  4    12 ms    13 ms    12 ms  po-300-xar01.alexandria.va.bad.comcast.net [2001:558:340:49e::1]
  5     *        *       14 ms  be-399-arsc1.capitolhghts.md.bad.comcast.net [2001:558:340:361::1]
  6    18 ms    11 ms    11 ms  be-31441-cs04.beaumeade.va.ibone.comcast.net [2001:558:3:207::1]
  7    16 ms    13 ms    15 ms  be-3412-pe12.ashburn.va.ibone.comcast.net [2001:558:3:9f::2]
  8    15 ms    14 ms    12 ms  2001:559::1202
  9    20 ms    13 ms    13 ms  vlan103.r32.spine101.iad03.fab.netarch.akamai.com [2600:1408:b400:421::1]
 10    12 ms    12 ms    13 ms  vlan132.r03.leaf104.iad03.fab.netarch.akamai.com [2600:1408:b400:250f::1]
 11    15 ms    12 ms    13 ms  vlan104.r22.tor104.iad03.fab.netarch.akamai.com [2600:1408:b400:3516::1]
 12    11 ms    12 ms    13 ms  g2600-1408-c400-1884-0000-0000-0000-2af2.deploy.static.akamaitechnologies.com [2600:1408:c400:1884::2af2]

C:\Windows\System32>tracert xfinity.com

Tracing route to xfinity.com [2001:558:feed:dc:96:99:240:130]
over a maximum of 30 hops:

  1     5 ms     5 ms     5 ms  2601:140:9081:2420:d66c:6dff:fe9c:c6a1
  2    16 ms    17 ms    17 ms  2001:558:1010:ed::2
  3    14 ms    15 ms    18 ms  po-70-rur301.alexandria.va.bad.comcast.net [2001:558:342:2f1::1]
  4    17 ms    12 ms    17 ms  po-300-xar01.alexandria.va.bad.comcast.net [2001:558:340:49e::1]
  5     *        *        *     Request timed out.
  6    21 ms    21 ms    15 ms  be-31431-cs03.beaumeade.va.ibone.comcast.net [2001:558:3:206::1]
  7    19 ms    16 ms    18 ms  2001:558:3:91a::2
  8    19 ms    17 ms    17 ms  et-4-36-1-sas01-d.ashburn.va.ndcasbn.comcast.net [2001:558:280:76f::2]
  9    35 ms    35 ms    35 ms  et-0-0-71-1-ss09a-d.ashburn.va.ndcasbn.comcast.net [2001:558:280:6c6::2]
 10     *        *        *     Request timed out.
 11     *        *        *     Request timed out.
 12     *        *        *     Request timed out.
 13     *        *        *     Request timed out.
 14     *        *        *     Request timed out.
 15     *        *        *     Request timed out.
 16     *        *        *     Request timed out.
 17     *        *        *     Request timed out.
 18     *        *        *     Request timed out.
 19     *        *        *     Request timed out.
 20     *        *        *     Request timed out.
 21     *        *        *     Request timed out.
 22     *        *        *     Request timed out.
 23     *        *        *     Request timed out.
 24     *        *        *     Request timed out.
 25     *        *        *     Request timed out.
 26     *        *        *     Request timed out.
 27     *        *        *     Request timed out.
 28     *        *        *     Request timed out.
 29     *        *        *     Request timed out.
 30     *        *        *     Request timed out.