Extremely slow LTE data in Castro, San Francisco

I have an iPhone 6 and LTE works fine most everywhere except on or around Castro Street in San Francisco. Most of the time, I can't even run a speed test since the free OOKLA app reports "Network Connectivity Issues." Other times, it's extremely high latency and low bandwidth. It's like this even though it shows 4 or 5 "dots" of LTE service. I also have a Retina Display iPad Mini with LTE service and see the same results, so I know it's not my iPhone.
When I switch off LTE and drop down to 3G on either device, I get decent data speeds (for 3G). I've also tried switching my iPhone LTE from "Voice & Data" to just "Data" with no change. I actually live a few blocks east of Castro where LTE service seems fine.
It's been like this for months. Is there some Verizon tower that serves that part of San Francisco that's either faulty or needs an upgrade?

Via a Facebook post to friends who also live in San Francisco, this problem is not unique to me. Others who live around or visit the Castro have this same problem. Some have left Verizon Wireless over it.

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Extremely slow LTE service in San Francisco

I have an iPhone 5 with Verizon postpaid contract plan [unfortunately].
The data speeds have been miserable last several months. Most of the time, my download is less than 1mbps and upload will be like 30kbps.
Right now, I am near the city hall area and my speeds are 0.03mbps down and 0.03mbps up. and yesterday was 0.04mpbs down and 0.10mbps up.
I went to the verizon store and it works fast inside since they have repeaters in the store. They said the phone appears to work fine and said it depends on the area..blah..blah..basically they just stopped short of admitting their network sucks in SF.
I'm extremely disappointed with the service considering how much they are charging me for it.
I think Verizon should give a discount or let us terminate the contract without the Early Termination Fee. I would be happy to go back to AT&T. They have much faster speeds here and lower fees.
Anyone else having such slow speeds in SF? Feel free to share it here..

I downloaded 4G LTE Switch (which was created because another one started having malware or requested a bunch of features, so this one, for now is pretty free of unnecessary items) from the Play store. Being able to force my phone to 3g is fantastic since I can actually use it again. The LTE works fine by PacBell Park, but while I have 4-5 bars of signal strength in places like the Castro (from Castro and Market down to Castro and 19th, Hartford over to whatever the street past Collingwood is) loads slowly, and by slow I mean 5 minutes between clicks on stuff and at worst times out entirely.
The other really bad area I've noticed is Church and Dorland Ave up to 20th and Church and over to Valencia.
I re-tested after downloading the app that allows me to force my Droid Maxx (Capable of XLTE so it's not that) and the things I was trying to do on LTE load near instantly on 3g since the data needs of the apps I'm using are miniscule. I've reported this to Verizon but of course never hear anything back from them. I'm just chiming in hoping that this and other forum posts get seen and have more and more people echo the ever increasing horror story of LTE on Verizon in San Francisco. I'm available for an upgrade, as much as I hate AT&T I might have to move over there myself.
I should mention I handle about 40 Verizon lines for my company and most of my users are reporting dead zones like this all over SF as well as all the people I play Ingress with (which is probably the best way to find data outages more than any other application on the phone right now due to being a GPS based video game where you have to go all over the place. Never thought I'd be using it as a tool for finding out where Verizon's data coverage is crap.)
If anyone wants me to post Speedtest pictures, I can make that happen, but I think if you're here in this thread you're in the same boat already.

Extremely slow internet data downloading

I have 2 other older Macs connected to my LAN both of which access the internet at normal speed. My new Mac mini pings addresses at the same rate as the other Macs but data download speed is extremely slow. Has anybody had this problem?

Define extremely slow.
Start with the basics:
1. System Preferences -> Network -> Network Port Configurations.
Uncheck all the boxes except the method you use to connect to the network (airport checked if you are wireless, or Built-in ethernet if you are wired)
2. System Preferences - Network -> Airport (or Built-in Ethernet depending on step 1.) -> TCP/IP -> Configure IPv6
Change selection to OFF
Under DNS (Optional Box) you may wish to manually enter in the IP addresses of your Service Providers DNS servers.
3. Because you have older Macs with an older selection of LAN hardware to access the internet you may want to see what the speed and duplex settings are on your box (access switch, broadband router, hub) and match those settings on your Built-in Ethernet if you are using that instead of Airport.
4. If you are wired, switch cables with one of the older Macs.
That should be a start.
Jan J.

LTE is extremely slow in Minnesota

I have had an iPhone 5 for about 3 weeks now, yesterday I noticed that the data connection was extremely slow when on the Verizon LTE network, I called customer service who stated they were unaware of any troubles in my area so we went through all sorts of resets, resetting network connections, firmware restore, the whole bit, nothing remedied the problem so they agreed to ship me a replacement phone. The phone has yet to arrive, but in speaking with my wife she is having the identical issue with her iPhone 5, this led me to begin thinking that the problem with in the network, not the device so I spoke to 3 other people who have LTE capable phones from verizon (different Android phones, 3 different models) and they all stated they were having the same issue. I find it difficult to believe that VZW hasn't identified the issue yet and fixed it, how can I get a trouble case raised to look at this? Everyone I have talked to that has VZW LTE is having the same issue, so I don't think that you would have troubles duplicating it but I would be willing to help test this out, from the forums I noticed people complaining about a similar issue back in late september down in the southern part of the US. Any help would be greatly appreciated, but I really would like to see a response from VZW customer care telling me a ticket has been opened to look into this, the LTE data was just fine until yesterday, no my speed tests won't even crack 1mbps sometimes

Easy if other people in the aera would call in to report verizon mite know about the problem ? I know how you feel it's a pain get something fixed lol.

San Francisco - LTE Network Outage

Once again LTE is either non existent or not even working in my location in San Francisco. I live near GG park 94117 (Cole / Page/ Waller/ Haight area and all day (sat. sept 28th), I've haven't been receiving any data and keep receiving "Network Communication issues". The 4G network in SF has been suffering for months. There's been multiple posts about this issue. I've performed multiple speed tests using 2 different devices in different parts of the city and get the same results. Can't even call support from the phone since the web-app pop ups when calling a verizon number and freezes since there's no data connection. Terrible. Why am I paying a premium for Verizon?
https://community.verizonwireless.com/thread/802217
https://community.verizonwireless.com/thread/802541

Verizon,
What are you doing about this??

Extremely slow data?

Anyone else experiencing extremely slow data?
I'm in San Diego area, and getting around 0.10-0.20 mbps, it was around .30-.60 the other day which is still slow, but it seems to be getting worst.

Mine has been slow. I don't understand why it must be my location. I've tried *228, option 2 several times.
According to Speedtest.net app (past few tries)
Ping 193ms; DL .18 Mbps; UL .58 Mbps
Ping 197ms; DL .53 Mbps; UL .52 Mbps
Ping 216ms; DL .21 Mbps; UL .56 Mbps
I'm jealous of those people who can get 1+Mbps.

TS3899 After updating to ISO6, my email sending get extremely slow or dispeard. on the botton line of mail page always indicate "sending # of 9", however I do not know where to check or delete these unsent items. Please help! It has consumed lots of data.

After updating to ISO6, my email sending get extremely slow or dispeard. on the botton line of mail page always indicate "sending # of 9", however I do not know where to check or delete these unsent items. Please help! It has consumed lots of data.
I use @me.com and @hotmail.com

Hi,
>>A CHAR datatype and VARCHAR2 datatype are stored identically (eg: the word 'WORD' stored in a CHAR(4) and a varchar2(4) consume exactly the same amount of space on disk, both have leading byte counts).
Ok, but on the other hands:
SGMS@ORACLE10> create table x (name char(10), name2 varchar2(10));
Table created.
SGMS@ORACLE10> insert into x values ('hello','hello');
1 row created.
SGMS@ORACLE10> commit;
Commit complete.
SGMS@ORACLE10> select vsize(name),vsize(name2) from x;
VSIZE(NAME) VSIZE(NAME2)
10 5
SGMS@ORACLE10> select dump(name),dump(name2) from x;
DUMP(NAME) DUMP(NAME2)
Typ=96 Len=10: 104,101,108,108,111,32,32,32,32,32 Typ=1 Len=5: 104,101,108,108,111Cheers

Extremely slow performance transferring data over USB with Time Capsule

I have the 2TB wireless Time Capsule. I have it setup as an extension to my current WiFi at home, since I already had a WLAN router. I have an external harddrive (500gig) that I connected to my Time Capsule because I wanted to transfer data from the Time Capsule to the external HD. The external HD is formatted with FAT32 file system, so read/write is no problem.
When, using my MacBook Pro, I navigated to the Time Capsule and dragged files over to the connected USB harddrive (connected directly in the Time Capsule), the performance to transfer is extremely SLOW! It was slower than doing the transfer completely wirelessly (USB drive connected to laptop and transfer wirelessly from TC)!
I do not understand this at all! It should be a simple transfer using the USB connection! When I do a transfer from my laptop directly to the USB harddrive, with it connected directly to the laptop, the transfers are super fast!
What happened? Can someone please explain this or tell me what I need to do?
Thank you!

I am still confused here.
My original question was regarding the use of my USB external harddrive. It was connected to the back of the TC. The TC was wirelessly speaking to my WLAN router. Using my laptop (also wirelessly speaking to WLAN router), I navigated to the TC and saw 2 listings - one for the data on the harddrive in the TC and one for the new external USB drive connected to the back of the TC. I wanted to transfer data from the harddrive in the TC to the USB external drive. Based on what I expected, I thought the transfer rate would merely be limited by the USB 2.0 interface that is being used by the external drive. However, I was definitely wrong! The transfer rate (shown by the estimate in time to transfer the data by my MacBook Pro) was doubled to 14 hrs.
Originally, it was only 7 hrs when the USB external drive is connected directly to my laptop and I connect to the TC wirelessly. Weird!
So why doesn't the TC simply transfer the data from its internal harddrive to the external USB drive directly without using any wireless technology?
The second question I have is regarding the setup of the TC itself. I have a NetGear WLAN router and its an "n" router. So the speed is good. I have my TC currently downstairs from the WLAN router. Therefore the TC is setup as simply a wireless harddrive. It speaks through the WLAN router in order to be available to all my laptops in my house. My question is whether it should instead be directly connected to the WLAN router using an ethernet cable? Would this improve my overall transfer rates to/from the TC?
Thanks so much.

Keep getting "not responding" message, extremely slow, have tried rebuilding data base, tried removing and re-installing. Still the same

keep getting "not responding" message, extremely slow, have tried rebuilding data base, tried removing and re-installing. Still the same

Do you use McAfee anti-virus software?
If yes, please read:
* https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues#McAfee
Is this an Imap mail account?
if yes, you can choose to only synchronize the most recent of emails instead of a whole folder.
see info :
* https://support.mozilla.org/en-US/kb/imap-synchronization#w_configuring-synchronization-and-disk-space-usage
Make sure you compact folders on a regular basis to remove all 'marked as deleted' emails.
Tools -> Account Settings -> Server Settings -> Clean up ("Expunge") Inbox on Exit will compact the Inbox folder when you exit Thunderbird. If you check "Empty Trash on Exit" it will also empty and compact the Trash folder when you exit.

Data transfer extremely slow

My wifi network seems to be very slow in transferring data - Airplay on ATV or file exchange between macs is extremely slow. Playing Airplay video from iOS to ATV is worse than watching Youtube. My internal network appears slower than my internet connection.
Any suggestion on what I should check or reset? Thanks
It is a provider's Huawei modem and an Airport Extreme router, distance few meters. I will not wire devices:)

Please also note that using a "speed test service" like speedtest.net or other is a measurement of your WAN link, ie from your router's WAN interface to the specified test location. This is not a measurement of throughput to your "client device". These results would be the same between your wireless client connected at a poor 1Mbps speed and your 1Gbps wired desktop. Do not use these types of services as a measurement of throughput of your internal infrastructure.
Keep in mind file transfers in windows (like copy and paste to a file share) utilizes Microsoft's SMB/SMB2 protocol which is very chatty and very inneficient. This is not a good throughput test. Utilizing a pure TCP transfer method, like FTP, would give more realistic results. Even better would be to utilize an application like iPerf to perform pure tcp/udp throughput testing.
Also, Microsoft tends to display transfers in terms of MegaBytes, rather than MegaBits. Your 100Mbps (megabit) internet would provide a potential throughput of 12.5 MegaBytes. The same as on your LAN. When you're copying a file to a share and it's going at 2megaBytes per second, this is actually 16 megabits per second. So, your client connected at 54Mbps, half-duplex, realizing a throughput of probably around 20-25mbps is actually doing pretty good to get 2-3 megabytes of transfer speed using SMB file transfers.
Unless you have true tcp throughput tests prior to changes and after changes, the data you have provided thus far is not indicative of poor performance.

LTE in San Francisco Financial District Dismal

I work in San Francisco downtown and I find myself often times turning off LTE because it is so unreliable or not even available. I've been using 3G because it is works better than LTE. Are there any plans to beef up the network here?

Did you get any response from Verizon on this issue?

Slow Airport Extreme 5th Gen Data Transfer

Airport Extreme Slow Data Transfer
When transferring files between PC – Nas, Nas – PC, & PC – PC my speeds are extremely slow (1.3 – 3.3mbps). Files range in size from 350mbps to 4gb. Here is my set-up:
Acer Aspire 5532 Win 7 x64 (internal 5ghz nic)
Toshiba Toshiba Satellite C655 Ubuntu 12.04 (internal 5ghz nic)
Gateway GT5418E Win 7 x64 (USB 2ghz nic)
Iomega 2TB Nas
Seagate GoFlex Home 3TB Nas
5th Generation Airport Extreme
Firmware Version: 7.6.3
Wireless Security: WPA2 Personal
Channel: 149 (automatic), 11 Automatic
Radio Mode: 80211.n Only (5ghz) – 80211n Only (2.4ghz)
Multicast Rate: High (also tried low and medium)
Use Wide Channels: Checked
2nd Generation Airport Extreme 5ghz extended network
It doesn’t seem to make a difference if I am using the extended network or sitting 5 feet from the primary (either band) with the extended disabled. I ran a LAN Speed test: averaging 12 – 16mbps write and 20+ read. Any advice would be helpful!
Thanks!

Hi madtytan,
Thanks for using Apple Support Communities.
These settings will help ensure maximum performance, security, and reliability when using Wi-Fi.
For more information on this, take a look at this article:
iOS and OS X: Recommended settings for Wi-Fi routers and access points
http://support.apple.com/kb/HT4199
Best of luck,
Mario

Extremely slow data access on auto detected NAS drive

I have a 27 inch iMac connected to a home network, on which I recently installed a Seagate Central NAS drive. When Finder automatically finds the drive under Shared, it wants to automatically log me into the drive as "Guest" instead of the administrator user I created on the Seagate drive. As Guest, the access time is extremely slow (takes minutes to display a list of folders). However, when I use Finder's Go>Connect to Server, it allows me to enter and remember my userid and password, and the response time in accessing folders and files is extremely fast. How can I get the auto detection to allow me to login with my userid and password in the same manner that I login using Go>Connect to Server, so I get fast data access on the drive?

Hi, see if this helps...
Do the Connect to Server route, then...
If they in fact do show up on the Desktop, then create a new Folder maybe named Shares on/in the Desktop, drag all those Shares shown on the Desktop to that Folder, drag that Folder to the right side of the Dock between Applications & Trash, this should give you a popup menu to select from.:-)
Mount that Share once, then once the Globe Icon shows up on the Desktop, drag that Globe Icon to the right side of the Dock between Applications & Trash. You now have a Dynamic Mount, a quick click on the Icon in the Dock will connect you.
On the multiple Shortcuts...
Mount them all, when show up on the Desktop, then create a new Folder maybe named Shares on/in the Desktop, drag all those Shares shown on the Desktop to that Folder, (you can even rename them once there, if you wish), drag that Folder to the right side of the Dock between Applications & Trash, this should give you a popup menu to select from.:-)
To automount them, drag those Aliases to the Accounts Pref Pane's Login Items Window.

Poor network performance in busy areas of San Francisco

Verizon LTE coverage seems to be very poor in certain parts of San Francisco. The connection seems ok at 2 or 3 bars on 4g, but data connections are very slow. In particular along 18th street between Church and Castro, and Castro Street from Market to 20th, and finally the North East side of Corona Heights park. I have a Galaxy S5, I've tried resetting a few times. Also, I've been walking with others on verizon that have the same issue, as well as people on other carriers that didn't. Any hope of seeing better coverage in the near future in those areas? There are several people considering switching over this.

Post a URL so we can test the page.
My "guess" is that Flash is the video format and Snow Leopard (10.6) actually installs an "out of date" version (fixed with the 10.6.1 update).
http://www.adobe.com/products/flashplayer/
Test your install at the link above.

MacBook startup extremely slow and troubleshooting solutions haven't worked. What can I do?

My MacBook is about a year old, and recently it became extremely slow during startup. At first it just seemed a little slow, but the past couple of days it has taken more and more time. It's now taking 5 - 10 minutes to fully come on. Once it's on, everything is fine.
I've troubleshooted in Apple Communities and tried all of the advice I've found, but nothing seems to be working. Here are the details.
My computer:
MacBook
OS 10.7.4
Processor: 2.4 GHz Intel Core 2 Duo
Memory: 4 GB 1067 MHz DDR3
Available hard disk space: 163.27 GB free (out of 249.2 GB)
What I've tried so far (in order):
1. Check startup disk - Startup disk was correctly selected
2. Use Disk Utility to Verify Hard Disk - No problems identified
3. Updated system software - no major updates (I update regularly to begin with)
4. Check System Monitor for hidden activity - Almost no activity (no other programs were running at the time); no strange users or activity
5. Check Login Items - The iTunesHelper was causing an error. I removed it and replaced it with iTunesHelper from the iTunes Package. The error was fixed, but no improvement in startup time. (Current Login items: GrowlMenu, GrowlHelperApp (Growl is up to date), iTunesHelper, Dropbox)
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AlBayan.ttf
AlBayanBold.ttf
AmericanTypewriter.ttc
Andale Mono.ttf
Apple Chancery.ttf
Apple LiGothic Medium.ttf
Apple LiSung Light.ttf
AppleCasual.dfont
AppleMyungjo.ttf
Arial Black.ttf
Arial Bold Italic.ttf
Arial Bold.ttf
Arial Italic.ttf
Arial Narrow Bold Italic.ttf
Arial Narrow Bold.ttf
Arial Narrow Italic.ttf
Arial Narrow.ttf
Arial Rounded Bold.ttf
Arial Unicode.ttf
Arial.ttf
ArialHB.ttf
ArialHBBold.ttf
Ayuthaya.ttf
Baghdad.ttf
Bangla MN.ttc
Bangla Sangam MN.ttf
Baskerville.ttc
BiauKai.ttf
BigCaslon.ttf
BlairMdITC TT-Medium
Bordeaux Roman Bold LET Fonts
Brush Script.ttf
Chalkboard.ttc
Chalkduster.ttf
CharcoalCY.dfont
Cochin.ttc
Comic Sans MS Bold.ttf
Comic Sans MS.ttf
Copperplate.ttc
Corsiva.ttf
CorsivaBold.ttf
Courier New Bold Italic.ttf
Courier New Bold.ttf
Courier New Italic.ttf
Courier New.ttf
Cracked
Damascus.ttc
DecoTypeNaskh.ttf
Devanagari Sangam MN.ttc
DevanagariMT.ttf
DevanagariMTBold.ttf
Didot.ttc
encodings.dir
EuphemiaCAS.ttc
fonts.dir
fonts.list
fonts.scale
Futura.ttc
GenevaCY.dfont
Georgia Bold Italic.ttf
Georgia Bold.ttf
Georgia Italic.ttf
Georgia.ttf
GillSans.ttc
Gujarati Sangam MN.ttf
GujaratiMT.ttf
GujaratiMTBold.ttf
Gungseouche.ttf
Gurmukhi MN.ttc
Gurmukhi.ttf
Handwriting - Dakota
HeadlineA.ttf
Hei.ttf
HelveticaCY.dfont
Herculanum.ttf
Hiragino Sans GB W3.otf
Hiragino Sans GB W6.otf
Hoefler Text Ornaments.ttf
Hoefler Text.ttc
Impact.ttf
InaiMathi.ttf
Kai.ttf
Kailasa.ttf
Kannada MN.ttc
Kannada Sangam MN.ttf
Kefa.ttc
Khmer MN.ttc
Khmer Sangam MN.ttf
Kokonor.ttf
Krungthep.ttf
KufiStandardGK.ttf
Lao MN.ttc
Lao Sangam MN.ttf
Malayalam MN.ttc
Malayalam Sangam MN.ttf
Microsoft
Microsoft Sans Serif.ttf
MshtakanBold.ttf
MshtakanBoldOblique.ttf
MshtakanOblique.ttf
MshtakanRegular.ttf
Myanmar MN.ttc
Myanmar Sangam MN.ttf
Nadeem.ttf
NanumGothic.ttc
NanumMyeongjo.ttc
NanumScript.ttc
NewPeninimMT.ttf
NewPeninimMTBold.ttf
NewPeninimMTBoldInclined.ttf
NewPeninimMTInclined.ttf
NISC18030.ttf
Noteworthy.ttc
Optima.ttc
Oriya MN.ttc
Oriya Sangam MN.ttf
Osaka.ttf
OsakaMono.ttf
Palatino
Palatino.ttc
Papyrus.ttc
PCmyoungjo.ttf
Pilgiche.ttf
PlantagenetCherokee.ttf
PortagoITC TT
PTSans.ttc
Raanana.ttf
RaananaBold.ttf
Sathu.ttf
Silom.ttf
Sinhala MN.ttc
Sinhala Sangam MN.ttf
Skia.ttf
STIXGeneral.otf
STIXGeneralBol.otf
STIXGeneralBolIta.otf
STIXGeneralItalic.otf
STIXIntDBol.otf
STIXIntDReg.otf
STIXIntSmBol.otf
STIXIntSmReg.otf
STIXIntUpBol.otf
STIXIntUpDBol.otf
STIXIntUpDReg.otf
STIXIntUpReg.otf
STIXIntUpSmBol.otf
STIXIntUpSmReg.otf
STIXNonUni.otf
STIXNonUniBol.otf
STIXNonUniBolIta.otf
STIXNonUniIta.otf
STIXSizFiveSymReg.otf
STIXSizFourSymBol.otf
STIXSizFourSymReg.otf
STIXSizOneSymBol.otf
STIXSizOneSymReg.otf
STIXSizThreeSymBol.otf
STIXSizThreeSymReg.otf
STIXSizTwoSymBol.otf
STIXSizTwoSymReg.otf
STIXVar.otf
STIXVarBol.otf
Tahoma Bold.ttf
Tahoma.ttf
Tamil MN.ttc
Tamil Sangam MN.ttf
Telugu MN.ttc
Telugu Sangam MN.ttf
Times New Roman Bold Italic.ttf
Times New Roman Bold.ttf
Times New Roman Italic.ttf
Times New Roman.ttf
Trebuchet MS Bold Italic.ttf
Trebuchet MS Bold.ttf
Trebuchet MS Italic.ttf
Trebuchet MS.ttf
Verdana Bold Italic.ttf
Verdana Bold.ttf
Verdana Italic.ttf
Verdana.ttf
Webdings.ttf
Wingdings 2.ttf
Wingdings 3.ttf
Wingdings.ttf
Zapfino.ttf
ヒラギノ丸ゴ Pro W4.otf
ヒラギノ丸ゴ ProN W4.otf
ヒラギノ明朝 Pro W3.otf
ヒラギノ明朝 Pro W6.otf
ヒラギノ角ゴ Pro W3.otf
ヒラギノ角ゴ Pro W6.otf
ヒラギノ角ゴ Std W8.otf
ヒラギノ角ゴ StdN W8.otf
儷宋 Pro.ttf
儷黑 Pro.ttf
华文仿宋.ttf
华文宋体.ttf
华文楷体.ttf
华文细黑.ttf
华文黑体.ttf
7. Verified and repaired disk permissions (there were several differences, they were all repaired).
I don't know what else to try. My Mac's not making any strange noises, and is otherwise running well. The only thing that I can think of is that it's been too humid in my house recently (rainy season in Japan). But the slow startup seems to be the same regardless of time of day and humidity, and if it were humidity I have no idea how to fix that. Also, none of my other Mac devices seem to be similarly affected, so I doubt that's the problem.
Any advice would be greatly appreciated!
Thank you!

It turns out that my hard drive was shot. I took my MacBook to the Apple Store on Wednesday, they kept it for analysis and repair. They replaced the hard drive, and I've already got it back (Friday; less than two days in total).
Although I did check my hard disk with the disk utility, it did not identify the problem.
Some other troubleshooting advice that I overlooked was to try reinstalling my OS and to try starting up in Safe Mode. Neither would have helped in this case, but they may be useful for someone else having similar problems.
Other advice - always make sure your data is backed up and that you Apple Care coverage is up to date.

Extremely slow LTE data in Castro, San Francisco

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